• More from M-W
  • To save this word, you'll need to log in. Log In

Definition of thesis

Did you know.

In high school, college, or graduate school, students often have to write a thesis on a topic in their major field of study. In many fields, a final thesis is the biggest challenge involved in getting a master's degree, and the same is true for students studying for a Ph.D. (a Ph.D. thesis is often called a dissertation ). But a thesis may also be an idea; so in the course of the paper the student may put forth several theses (notice the plural form) and attempt to prove them.

Examples of thesis in a Sentence

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'thesis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

in sense 3, Middle English, lowering of the voice, from Late Latin & Greek; Late Latin, from Greek, downbeat, more important part of a foot, literally, act of laying down; in other senses, Latin, from Greek, literally, act of laying down, from tithenai to put, lay down — more at do

14th century, in the meaning defined at sense 3a(1)

Dictionary Entries Near thesis

the sins of the fathers are visited upon the children

thesis novel

Cite this Entry

“Thesis.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/thesis. Accessed 21 Jun. 2024.

Kids Definition

Kids definition of thesis, more from merriam-webster on thesis.

Nglish: Translation of thesis for Spanish Speakers

Britannica English: Translation of thesis for Arabic Speakers

Britannica.com: Encyclopedia article about thesis

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Play Quordle: Guess all four words in a limited number of tries.  Each of your guesses must be a real 5-letter word.

Can you solve 4 words at once?

Word of the day.

See Definitions and Examples »

Get Word of the Day daily email!

Popular in Grammar & Usage

Plural and possessive names: a guide, more commonly misspelled words, your vs. you're: how to use them correctly, every letter is silent, sometimes: a-z list of examples, more commonly mispronounced words, popular in wordplay, 8 words for lesser-known musical instruments, birds say the darndest things, 10 words from taylor swift songs (merriam's version), 10 scrabble words without any vowels, 12 more bird names that sound like insults (and sometimes are), games & quizzes.

Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.

Grammarflex

Grammarflex logo

What’s the Plural of Thesis? (Thesises? Theses?)

  • November 13, 2022

write the plural of thesis

What’s the plural of “thesis”?

Thesis , (and its plural theses ) is an example of one of the many common English words that has roots elsewhere. In this case, thesis is a word that has roots all the way back to Ancient Greek. Like other similarly structured words: diagnosis , synthesis , analysis , oasis , crisis , nemesis and the like, thesis is by no means the only frequently used Greek word that’s made it to Modern English.

What’s the singular of thesis?

"Thesis" singular in sentences.

Thesis is a singular noun and refers to one thing (or one thesis ).

What’s a thesis?

Merriam-Webster defines the noun thesis (plural theses ) as follows, “a dissertation embodying results of original research and especially substantiating a specific view especially : one written by a candidate for an academic degree.”

write the plural of thesis

Nouns that end in -sis/ses

Thesis is an irregular plural noun that does not end in the typical -s / -es that regular plural noun forms take. This is so despite that theses plural does in fact end in the conventional -s/-es suffix. Why is it still considered irregular; then, given that it follows the regular plural form? Notice the following regular plural noun forms:

write the plural of thesis

Thesis / theses operates differently. With these Greek words, the -ses does not simply  add onto the end of the singular form of the noun; instead, -ses replaces the singular noun’s suffixes, and effectively changes the entire spelling of the word (and arguably the word itself.)

crises

Examples of “thesis” (singular) in sentences

His master thesis was on modal neural networks.
She wrote her thesis on Renaissance Nativity scenes.
We disagreed with the basic thesis of the report.
I’ve made a first draft of my thesis .
The student’s experiments helped her formulate a thesis to share with her professor and classmates.

Examples of “theses” (plural) in sentences

It must not be assumed that Luther’s ninety-five theses produced any considerable direct results.
The collection of theses are ready for publication.
Twenty years after Savonarola’s death Martin Luther made public his theses against indulgences.
Theses are generally examined by two or more specialists.
Theses is the plural form of the singular noun thesis.

Origin of the word “thesis”

Thesis / theses are of Greek origin.

Read about other irregular nouns

  • What’s the plural of bison?
  • What’s the plural of moose?
  • What’s the plural of sheep?
  • What’s the plural of ox?
  • What’s the plural of cactus?
  • What’s the plural of crisis?
  • What’s the plural of hypothesis?

Read about other topics in grammar

  • What’re personal pronouns?
  • What’s the difference between they’re, their, and there?
  • Whose vs who’s?
  • Merriam-Webster, thesis/theses.

Recent Posts

Nerve-racking or nerve-wracking?

Is it Nerve-Racking, Nerve-Wrecking or Nerve-Wracking?

Which is correct: nerve-wracking or nerve-racking? To describe something as extremely irritating, annoying, or trying; (as in, a nerve-racking day; or a nerve-racking noise), we

Beck and call or beckon call?

“Beck and Call” or “Beckon Call”? Which is Correct?

Meaning of ‘beck and call’ ‘To be at someone’s beck and call‘ is an idiomatic expression that describes being immediately available, or ready to be

What does connotation mean?

What’s the Meaning of the Word “Connotation”?

Ever catch bad vibes from a text? Any feeling or internal response you have from the actual words used to is its connotation; which perhaps

Ambiguous vs. Ambivalent

What’s the Difference Between Ambiguous & Ambivalent?

Are ambiguous and ambivalent the same? Something ambiguous (an adjective) is unclear, vague and open to different interpretations. To be ambivalent (also an adjective) means

When to use have or had?

When to Use Have or Had? (Explained with Examples)

When should you use “have” or “had”? When is it correct to use have, has, or had? Phrased differently, what’s the past tense of have?

The past participle

What’s the Past Participle? (Explanation & Usage)

The past participle is a form of a verb that can appear as an adjective, or be used to form specific tenses and the passive

Emigrate or immigrate?

Emigrate vs. Immigrate (Meaning + Examples)

Meaning of emigrate vs. immigrate To immigrate is the verb form of the noun immigrant; referring to someone that’s moved away from their birth country

Recurring or reoccurring?

Recurring vs. Reoccurring (Correct Usage, + Examples)

Did you have a recurring or reoccurring dream? If you’re finding the difference between these two words befuddling, then this post is for you. How

Nevertheless vs. nonetheless

What’s the Difference Between Nevertheless vs. Nonetheless?

Nevertheless vs. nonetheless Nevertheless and nonetheless are synonyms that both belong to the same part of speech; i.e, they’re compound adverbs that express contrast. There

What's the opposite of
Meaning of the word
Words that rhyme with
Sentences with the word
Translate to
Find Words Use * for blank tiles (max 2) Use * for blank spaces
Find the of
Pronounce the word in
Find Names    
Appearance
Use device theme  
Dark theme
Light theme
? ? Here's the word you're looking for. The plural form of thesis is .
Use * for blank tiles (max 2)
Use * for blank spaces
The book is a compilation of doctoral candidates' dissertations and .
Leuthner was fiercely attacked for his at the time by social democratic leader Karl Kautsky.
Many scientists, including people writing doctoral , had access to the bones, and they were laboriously studied.
Today, most universities require their students to submit electronic and dissertations for their graduation.
They can continue classes or use the research as their master's and doctoral dissertations.
This synthesis is based on public domain data, including published papers, and dissertations.

bottom_desktop desktop:[300x250]

go
Word Tools Finders & Helpers Apps More Synonyms


Copyright WordHippo © 2024
  • 1.1 Etymology
  • 1.2 Pronunciation
  • 1.3.1 Derived terms
  • 1.3.2 Related terms
  • 1.3.3 Translations
  • 1.4 References
  • 1.5 Further reading
  • 1.6 Anagrams
  • 2.1 Etymology
  • 2.2 Pronunciation
  • 3.1 Etymology
  • 3.2 Pronunciation
  • 3.3.1 Declension
  • 3.3.2 Descendants
  • 3.4 References

From Late Middle English thesis ( “ lowering of the voice ” ) [1] and also borrowed directly from its etymon Latin thesis ( “ proposition, thesis; lowering of the voice ” ) , from Ancient Greek θέσῐς ( thésis , “ arrangement, placement, setting; conclusion, position, thesis; lowering of the voice ” ) , from τῐ́θημῐ ( títhēmi , “ to place, put, set; to put down in writing; to consider as, regard ” ) [2] [3] (ultimately from Proto-Indo-European *dʰeh₁- ( “ to do; to place, put ” ) ) + -σῐς ( -sis , suffix forming abstract nouns or nouns of action, process, or result ) . The English word is a doublet of deed .

Sense 1.1 (“proposition or statement supported by arguments”) is adopted from antithesis . [2] Sense 1.4 (“initial stage of reasoning”) was first used by the German philosopher Johann Gottlieb Fichte (1762–1814), and later applied to the dialectical method of his countryman, the philosopher Georg Wilhelm Friedrich Hegel (1770–1831).

The plural form theses is borrowed from Latin thesēs , from Ancient Greek θέσεις ( théseis ) .

Pronunciation

  • ( Received Pronunciation ) IPA ( key ) : /ˈθiːsɪs/ , ( archaic ) /ˈθɛsɪs/
Audio ( ): ( )
  • ( General American ) IPA ( key ) : /ˈθisɪs/
  • Rhymes: -iːsɪs
  • Hyphenation: the‧sis
  • ( Received Pronunciation ) IPA ( key ) : /ˈθiːsiːz/
  • ( General American ) IPA ( key ) : /ˈθisiz/
  • Rhymes: -iːsiːz
  • Hyphenation: the‧ses

thesis ( plural theses )

  • ( rhetoric ) A proposition or statement supported by arguments .
  • 1766 , [ Oliver Goldsmith ], “The Conclusion”, in The Vicar of Wakefield:   [ … ] , volume II, Salisbury, Wiltshire: [ … ] B. Collins, for F [ rancis ] Newbery ,   [ … ] , →OCLC ; reprinted London: Elliot Stock , 1885 , →OCLC , pages 218–219 : I told them of the grave, becoming, and ſublime deportment they ſhould aſſume upon this myſtical occaſion, and read them two homilies and a theſis of my own compoſing, in order to prepare them.
  • ( mathematics , computer science ) A conjecture , especially one too vague to be formally stated or verified but useful as a working convention.
  • ( logic ) An affirmation , or distinction from a supposition or hypothesis .
  • ( philosophy ) In the dialectical method of Georg Wilhelm Friedrich Hegel : the initial stage of reasoning where a formal statement of a point is developed ; this is followed by antithesis and synthesis .
  • ( music , prosody , originally ) The action of lowering the hand or bringing down the foot when indicating a rhythm ; hence, an accented part of a measure of music or verse indicated by this action; an ictus , a stress . Antonym: arsis
  • ( music , prosody , with a reversal of meaning ) A depression of the voice when pronouncing a syllables of a word ; hence, the unstressed part of the metrical foot of a verse upon which such a depression falls , or an unaccented musical note .

Derived terms

  • all but thesis
  • bachelor's thesis
  • Church-Turing thesis
  • conflict thesis
  • doctoral thesis
  • graduate thesis
  • Habakkuk thesis
  • master's thesis
  • Merton thesis
  • private language thesis
  • thesis defense
  • thesis film
  • thesis statement

Related terms

Translations.

  (tʻez)   ,   (tézis),   (palažénnje),   (téza)     (téza),     (tézis)     (leon dim ), (leon tai )   (lùndiǎn),   (lùntí)       ,             ,             (tezisi)       (thésis)       ,       (tēze),   (ろんだい, rondai),   (しゅちょう, shuchō),   (ていりつ, teiritsu) (teje), (nonje), (ronje) (North Korea)     (teza)                 (tɛ́zis),     (položénije)                   ,   ,   ,   ,     (téza),   (tézys),   (polóžennja)  
  (ʔuṭrūḥa)   (atenaxosutʻyun),   (disertacʻia), (diplomayin ašxatankʻ)     (dysjertácyja),   (dysertácyja),   (dyplómnaja rabóta)     (disertácija)     ,     (leon man )   (lùnwén)     ,       ,     ,       ,   ;   ;           ,   (diserṭacia)     ,     ,     ,     ,     ,     (only a doctoral thesis) (mahāśodh nibandh)     (téza)   ,   (postgraduate),           (ろんぶん, ronbun) (dissertasiä), (diplomdyq jūmys)   (nɨkkheepaʼbɑt)   (nonmun),   (ronmun) (North Korea) (dissertatsiya)   (wi tha nyā ni phon)         (disertacija)   or     , (pâyân-nâme),       ,           ,         (dissertácija),   (diplómnaja rabóta)         ,     ,         ,     (dissertatsiya)   (wít-tá-yaa-ní-pon),   (bpà-rin-yaa-ní-pon),   (ní-pon)   , ,   (dysertácija),   (dyplómna robóta)   , ,  
  (thésis)  
  • ^ “ thē̆sis, n. ”, in MED Online , Ann Arbor, Mich.: University of Michigan , 2007 .
  • ^ “ thesis, n. ”, in Lexico , Dictionary.com ; Oxford University Press , 2019–2022 .

Further reading

  • “ thesis ”, in The Century Dictionary   [ … ] , New York, N.Y.: The Century Co. , 1911 , →OCLC .
  • “ thesis ”, in Webster’s Revised Unabridged Dictionary , Springfield, Mass.: G. & C. Merriam , 1913 , →OCLC .
  • Heists , Sethis , heists , shiest , shites , sithes , thises

From Latin thesis , from Ancient Greek θέσις ( thésis , “ a proposition, a statement, a thing laid down, thesis in rhetoric, thesis in prosody ” ) .

Audio: ( )

thesis   f ( plural theses or thesissen , diminutive thesisje   n )

  • Dated form of these . Synonyms: dissertatie , proefschrift , scriptie

From Ancient Greek θέσις ( thésis , “ a proposition, a statement, a thing laid down, thesis in rhetoric, thesis in prosody ” ) .

  • ( Classical Latin ) IPA ( key ) : /ˈtʰe.sis/ , [ˈt̪ʰɛs̠ɪs̠]
  • ( modern Italianate Ecclesiastical ) IPA ( key ) : /ˈte.sis/ , [ˈt̪ɛːs̬is]

thesis   f ( genitive thesis ) ; third declension

Case Singular Plural

Descendants

  • → Dutch: thesis
  • → Armenian: թեզ ( tʻez )
  • → Dutch: these
  • → Persian: تز ( tez )
  • → Romanian: teză
  • → Turkish: tez
  • Galician: tese
  • Italian: tesi
  • English: thesis
  • Portuguese: tese
  • Spanish: tesis
  • “ thesis ”, in Charlton T. Lewis and Charles Short ( 1879 ) A Latin Dictionary , Oxford: Clarendon Press
  • thesis in Gaffiot, Félix ( 1934 ) Dictionnaire illustré latin-français , Hachette.

write the plural of thesis

  • English terms derived from Proto-Indo-European
  • English terms derived from the Proto-Indo-European root *dʰeh₁-
  • English terms inherited from Middle English
  • English terms derived from Middle English
  • English terms borrowed from Latin
  • English terms derived from Latin
  • English terms derived from Ancient Greek
  • English doublets
  • English 2-syllable words
  • English terms with IPA pronunciation
  • English terms with audio links
  • Rhymes:English/iːsɪs
  • Rhymes:English/iːsɪs/2 syllables
  • Rhymes:English/iːsiːz
  • Rhymes:English/iːsiːz/2 syllables
  • English lemmas
  • English nouns
  • English countable nouns
  • English nouns with irregular plurals
  • en:Rhetoric
  • English terms with quotations
  • en:Mathematics
  • en:Computer science
  • en:Philosophy
  • English contranyms
  • Dutch terms derived from Latin
  • Dutch terms derived from Ancient Greek
  • Dutch terms with audio links
  • Dutch lemmas
  • Dutch nouns
  • Dutch nouns with Latin plurals
  • Dutch nouns with plural in -en
  • Dutch feminine nouns
  • Dutch dated forms
  • Latin terms derived from Proto-Indo-European
  • Latin terms derived from the Proto-Indo-European root *dʰeh₁-
  • Latin terms borrowed from Ancient Greek
  • Latin terms derived from Ancient Greek
  • Latin 2-syllable words
  • Latin terms with IPA pronunciation
  • Latin lemmas
  • Latin nouns
  • Latin third declension nouns
  • Latin feminine nouns in the third declension
  • Latin feminine nouns
  • Word of the day archive
  • English entries with language name categories using raw markup
  • Terms with Armenian translations
  • Terms with Asturian translations
  • Terms with Azerbaijani translations
  • Terms with Belarusian translations
  • Terms with Bulgarian translations
  • Terms with Catalan translations
  • Terms with Cantonese translations
  • Mandarin terms with redundant transliterations
  • Terms with Mandarin translations
  • Terms with Czech translations
  • Terms with Danish translations
  • Terms with Dutch translations
  • Terms with Esperanto translations
  • Terms with Estonian translations
  • Terms with Finnish translations
  • Terms with French translations
  • Terms with Galician translations
  • Terms with Georgian translations
  • Terms with German translations
  • Terms with Ancient Greek translations
  • Terms with Hungarian translations
  • Terms with Italian translations
  • Terms with Japanese translations
  • Terms with Korean translations
  • Terms with Latin translations
  • Terms with Macedonian translations
  • Terms with Malay translations
  • Terms with Maori translations
  • Terms with Norwegian Bokmål translations
  • Terms with Persian translations
  • Terms with Polish translations
  • Terms with Portuguese translations
  • Russian terms with non-redundant manual transliterations
  • Terms with Russian translations
  • Terms with Serbo-Croatian translations
  • Terms with Slovak translations
  • Terms with Slovene translations
  • Terms with Spanish translations
  • Terms with Swedish translations
  • Terms with Tagalog translations
  • Terms with Turkish translations
  • Terms with Ukrainian translations
  • Terms with Vietnamese translations
  • Terms with Arabic translations
  • Terms with Gujarati translations
  • Terms with Hebrew translations
  • Terms with Indonesian translations
  • Terms with Kazakh translations
  • Terms with Khmer translations
  • Terms with Kyrgyz translations
  • Terms with Lao translations
  • Terms with Latvian translations
  • Terms with Lithuanian translations
  • Terms with Norwegian Nynorsk translations
  • Terms with Romanian translations
  • Terms with Tajik translations
  • Terms with Thai translations
  • Terms with Uzbek translations
  • Terms with Middle English translations

Navigation menu

  • Dictionaries home
  • American English
  • Collocations
  • German-English
  • Grammar home
  • Practical English Usage
  • Learn & Practise Grammar (Beta)
  • Word Lists home
  • My Word Lists
  • Recent additions
  • Resources home
  • Text Checker

Definition of thesis noun from the Oxford Advanced Learner's Dictionary

  • Students must submit a thesis on an agreed subject within four years.
  • He presented this thesis for his PhD.
  • a thesis for a master's degree
  • He's doing a doctoral thesis on the early works of Shostakovich.
  • Many departments require their students to do a thesis defense.
  • She completed an MSc by thesis.
  • her thesis adviser at MIT
  • in a/​the thesis
  • thesis about

Questions about grammar and vocabulary?

Find the answers with Practical English Usage online, your indispensable guide to problems in English.

  • The basic thesis of the book is fairly simple.
  • These latest findings support the thesis that sexuality is determined by nature rather than choice.
  • formulate/​advance a theory/​hypothesis
  • build/​construct/​create/​develop a simple/​theoretical/​mathematical model
  • develop/​establish/​provide/​use a theoretical/​conceptual framework
  • advance/​argue/​develop the thesis that…
  • explore an idea/​a concept/​a hypothesis
  • make a prediction/​an inference
  • base a prediction/​your calculations on something
  • investigate/​evaluate/​accept/​challenge/​reject a theory/​hypothesis/​model
  • design an experiment/​a questionnaire/​a study/​a test
  • do research/​an experiment/​an analysis
  • make observations/​measurements/​calculations
  • carry out/​conduct/​perform an experiment/​a test/​a longitudinal study/​observations/​clinical trials
  • run an experiment/​a simulation/​clinical trials
  • repeat an experiment/​a test/​an analysis
  • replicate a study/​the results/​the findings
  • observe/​study/​examine/​investigate/​assess a pattern/​a process/​a behaviour
  • fund/​support the research/​project/​study
  • seek/​provide/​get/​secure funding for research
  • collect/​gather/​extract data/​information
  • yield data/​evidence/​similar findings/​the same results
  • analyse/​examine the data/​soil samples/​a specimen
  • consider/​compare/​interpret the results/​findings
  • fit the data/​model
  • confirm/​support/​verify a prediction/​a hypothesis/​the results/​the findings
  • prove a conjecture/​hypothesis/​theorem
  • draw/​make/​reach the same conclusions
  • read/​review the records/​literature
  • describe/​report an experiment/​a study
  • present/​publish/​summarize the results/​findings
  • present/​publish/​read/​review/​cite a paper in a scientific journal
  • The results of the experiment support his central thesis.
  • Most people rejected this thesis at the time because it presumed evolution rather than creation.
  • fundamental

Nearby words

ESLBUZZ

Plural of Thesis: A Quick Guide for English Learners

By: Author ESLBUZZ

Posted on Last updated: October 11, 2023

Sharing is caring!

Do you know the plural of thesis? Understanding the correct plural of thesis is important not only for academic writing, but for general communication as well. Whether you’re discussing multiple research papers or simply trying to sound knowledgeable in a conversation, using the correct plural form can help you make a good impression and avoid any confusion or misunderstandings.

Plural of Thesis

Plural of Thesis: A Quick Guide for English Learners

Definition and Plural of Thesis

When writing a research paper or dissertation, the central argument or main point is known as a thesis. A thesis is a statement or proposition that is put forward as a premise to be maintained or proved. It is a crucial element of academic writing and is often required for a degree or certification.

The plural of thesis is “theses.” In English, most nouns form the plural by adding an “s” at the end. However, “thesis” is one of the few exceptions to this rule. The word “thesis” has a Greek root, and “theses” is how it is pluralized in that original language.

Singular Plural
Thesis Theses

It is important to note that “theses” is the only way to make the noun “thesis” plural. There is no alternative form of the plural for this word.

In academic writing, the plural form “theses” is commonly used when referring to multiple research papers or dissertations. For example, “I have read several theses on this topic, and they all have different viewpoints.”

When to Use Thesis and Its Plural Form

When writing academic papers or conducting research, it is important to understand when to use the word “thesis” and its plural form, “theses.” Here are some guidelines to help you use these words correctly:

  • Use “thesis” when referring to a single research paper or dissertation that presents a specific argument or viewpoint.
  • Use “theses” when referring to multiple research papers or dissertations.
  • Remember that “thesis” is a singular noun and “theses” is its plural form.
  • Be aware that “thesis” has a Greek root and follows the same pluralization rule as other Greek words ending in “-is,” such as “crisis” and “analysis.” They become “crises” and “analyses,” respectively.
  • Keep in mind that “thesis” can also refer to a statement or proposition that is put forward for consideration or discussion. In this case, the plural form would be “theses.”
  • When citing multiple theses in a paper, use “theses” to indicate the plurality. For example, “The theses presented in this paper all support the idea that…”

Examples of Thesis and Its Plural Form in Sentences

If you are wondering how to use the word “thesis” in a sentence, here are a few examples:

  • Your thesis statement should be clear and concise.
  • The professor asked us to submit our theses by the end of the semester.
  • The thesis of the article is that climate change is caused by human activity.
  • She spent months researching and writing her thesis on the history of feminism .
  • The committee was impressed by the depth and originality of his thesis.

As you can see, “thesis” is used to refer to a statement or argument put forth by a writer or speaker, as well as a research paper written by a student to earn a degree.

Now, let’s take a look at the plural form of “thesis.” According to Grammar Monster, the only correct way to form the plural of “thesis” is “theses.” Here are some examples of how to use “theses” in a sentence:

  • The library has a collection of theses written by graduate students.
  • The professor asked us to read several theses on the topic before starting our own research.
  • The theses presented at the conference covered a wide range of topics.
  • The committee was impressed by the quality and originality of the theses submitted.

Plural Noun Rules for Regular Nouns

When forming the plural of regular nouns, there are some standard rules to follow. These rules apply to most English nouns, including “thesis.” Here are the basic guidelines:

  • For most singular nouns, simply add an “-s” to the end to form the plural. For example, “book” becomes “books,” “car” becomes “cars,” and “house” becomes “houses.”
  • If the singular noun ends in “-s,” “-x,” “-z,” “-ch,” or “-sh,” add “-es” to form the plural. For example, “bus” becomes “buses,” “box” becomes “boxes,” “buzz” becomes “buzzes,” “church” becomes “churches,” and “dish” becomes “dishes.”
  • If the singular noun ends in a consonant followed by “-y,” change the “-y” to “-ies” to form the plural. For example, “city” becomes “cities,” “baby” becomes “babies,” and “story” becomes “stories.”
  • If the singular noun ends in a vowel followed by “-y,” simply add an “-s” to form the plural. For example, “boy” becomes “boys,” “key” becomes “keys,” and “day” becomes “days.”

It’s important to note that there are some irregular nouns that don’t follow these rules. For example, “child” becomes “children,” “foot” becomes “feet,” and “tooth” becomes “teeth.” However, “thesis” is a regular noun, so it follows the standard rules for forming the plural.

Plural Noun Rules for Irregular Nouns

When it comes to forming the plural of nouns in English, there are some general rules that apply to most words. However, there are also many irregular nouns that don’t follow these rules and have unique plural forms. In this section, we’ll go over some common irregular plural nouns and the rules for forming their plurals.

List of Common Irregular Plural Nouns

Here are some examples of irregular plural nouns that you may come across:

Singular Plural
Child Children
Foot Feet
Goose Geese
Man Men
Mouse Mice
Tooth Teeth
Woman Women

Nouns that End in Us

Nouns that end in “us” often have a plural form that ends in “i”. For example:

Singular Plural
Cactus Cacti
Focus Foci
Radius Radii

Nouns that End in Is

Nouns that end in “is” may have a plural form that ends in “es”. For example:

Singular Plural
Analysis Analyses
Basis Bases
Crisis Crises

Nouns that End in On

Nouns that end in “on” may have a plural form that ends in “a”. For example:

Singular Plural
Criterion Criteria
Phenomenon Phenomena
Vertex Vertices

Plurals That Are the Same as Singulars

Some nouns have the same form for both the singular and plural. For example:

Singular Plural
Deer Deer
Fish Fish
Sheep Sheep

Words That Look Like Plural Nouns but Are Singular Nouns

Some words may look like plural nouns but are actually singular nouns. For example:

Singular Plural
News
Mathematics
Physics

Collective Nouns and List

When it comes to forming the plural of nouns, collective nouns can be a bit tricky. A collective noun refers to a group of people or things as a single entity. For example, “team” is a collective noun because it refers to a group of individuals working together towards a common goal.

The challenge with collective nouns is deciding whether to treat them as singular or plural. In American English, collective nouns are usually treated as singular, while in British English, they can be treated as either singular or plural depending on the context.

Here are some examples of collective nouns and how they can be treated in different contexts:

Collective Noun Singular Example Plural Example
audience The audience is enjoying the show. The audience are clapping their hands.
family My family is going on vacation. My family are all different ages.
staff The staff is working hard. The staff are taking their lunch breaks.

As you can see, the choice of whether to use a singular or plural verb depends on whether you are referring to the group as a single entity or as individuals within the group.

When it comes to forming the plural of collective nouns, the same rules apply as for regular nouns. For example, the plural of “team” is “teams”, and the plural of “family” is “families”.

Plural Nouns vs. Possessive Nouns

When it comes to forming the plural of nouns, there are standard rules that apply to most words in the English language. However, there are some exceptions, such as the word “thesis.” The plural of “thesis” is “theses,” and this is the only correct way to form the plural of this word.

On the other hand, when it comes to forming possessive nouns, there are a few rules to keep in mind. Here are some key points to remember:

  • For singular nouns, add an apostrophe and an “s” to show possession. For example, “the thesis’s conclusion” means the conclusion belonging to the thesis.
  • For plural nouns that end in “s,” add only an apostrophe to show possession. For example, “the theses’ conclusions” means the conclusions belonging to the theses.
  • For plural nouns that do not end in “s,” add an apostrophe and an “s” to show possession. For example, “women’s rights” means the rights belonging to women.

It’s important to note that possessive nouns should not be confused with plural nouns. While they may look similar, they serve different grammatical functions. Possessive nouns show ownership or possession, while plural nouns simply refer to more than one of something.

Common Mistakes with Plural Nouns

When it comes to forming the plural of nouns, there are some common mistakes that are made. Here are a few things to keep in mind when forming the plural of the word “thesis” and other nouns:

Adding an Apostrophe

One common mistake is adding an apostrophe to a noun to make it plural. For example, “the thesis’s” instead of “the theses.” This is incorrect and should be avoided.

Irregular Plurals

Some nouns have irregular plurals that do not follow the standard rules. For example, “child” becomes “children” and “goose” becomes “geese.” It is important to learn these irregular plurals to avoid mistakes.

Confusion over Plurals

Some nouns, like “thesis,” can cause confusion over their plural form. “Theses” is the only correct way to make “thesis” plural. Other words that end in “-is” may also have irregular plurals, such as “crisis” becoming “crises.”

Using Incorrect Count Nouns

It is important to use the correct count nouns when referring to multiple instances of something. For example, “studies” instead of “researches,” and “pieces of evidence” instead of “evidences.” Using the incorrect count noun can make your writing sound awkward or confusing.

Frequently Asked Questions

What is the correct plural form of ‘thesis’?

The correct plural form of ‘thesis’ is ‘theses.’ It is an irregular plural noun that does not follow the typical -s/-es suffix used for regular plural nouns.

How is ‘thesis’ used in a sentence?

‘Thesis’ refers to a statement or theory that is put forward as a premise to be maintained or proved. An example sentence would be: “Her thesis on the effects of climate change was well-researched and presented.”

What is the origin of the word ‘thesis’?

The word ‘thesis’ comes from the Greek word ‘tithenai,’ which means ‘to place’ or ‘to put.’ In academia, it refers to a statement or theory that is put forward as a premise to be maintained or proved.

What is the difference between ‘thesis’ and ‘theses’?

‘Thesis’ is the singular form of the word, while ‘theses’ is the plural form. ‘Thesis’ refers to a single statement or theory, while ‘theses’ refers to multiple statements or theories.

The plural of thesis is the word 'theses'.

"}},{"@type":"Question","name":"How do you pluralize thesis?","acceptedAnswer":{"@type":"Answer","text":"

To pluralize 'thesis', you simply add 'es' to the end of the word. This is because 'thesis' ends in 'is', which is a singular noun ending.

"}},{"@type":"Question","name":"Is the plural of thesis 'theses'?","acceptedAnswer":{"@type":"Answer","text":"

Yes, the plural of thesis is 'theses'.

"}},{"@type":"Question","name":"What is the irregular plural form of thesis?","acceptedAnswer":{"@type":"Answer","text":"

'Theses' is not an irregular plural form of thesis. It is a regular plural form.

"}},{"@type":"Question","name":"What are some examples of irregular plural nouns?","acceptedAnswer":{"@type":"Answer","text":"

Some examples of irregular plural nouns include 'child' (children), 'tooth' (teeth), and 'foot' (feet).

"}},{"@type":"Question","name":"How do you correctly pluralize nouns ending in -is?","acceptedAnswer":{"@type":"Answer","text":"

To correctly pluralize nouns ending in -is, you simply change the 'is' to 'es'. For example, the plural of 'thesis' is 'theses', and the plural of 'analysis' is 'analyses'.

  • Recent Posts

ESLBUZZ

  • Ed Words: Expand Your Vocabulary and Improve Your Writing! - April 15, 2024
  • List of Ethnicities and Their Cultures from Around the World - April 2, 2024
  • Mastering English Writing: Essential Transitional Words for Body Paragraphs - March 25, 2024

Related posts:

  • Plural of Advice: Master English Plural Forms Today!
  • Plural of Apparatus: The Ultimate Guide to Understanding Plural Nouns
  • Plural of Cactus: How to Use It Correctly in English Grammar
  • Plural of Deer: Understanding the Correct Terminology

English Teacher Site

Whats the Plural of Thesis: Understanding Singular and Plural Forms

  • The plural of “thesis” adheres to the Greek-rooted pattern, changing the singular -is to a plural -es.
  • Accurate use of “thesis” and “theses” reflects scholarly precision in both written and oral communication.
  • Awareness of correct pluralization extends to other similar nouns ending in -sis, emphasizing the importance of understanding language origins.

It is crucial to use the word correctly in both singular and plural contexts to maintain the integrity of written and spoken communication. In the realm of academics, precision in language reflects the rigor of one’s research and argumentation. As such, understanding the transformation from “thesis” to its plural counterpart is more than a trivial detail; it reflects a deeper appreciation for the structure and history of the English language.

What’s the Plural of Thesis?

The proper plural of thesis is “theses.” This transformation is part of a broader pattern in the English language where certain nouns change their ending to reflect a plural state.

Below, a comparison is made to illustrate the standard singular to plural transformation for nouns ending in -is:

SingularPlural
thesistheses
crisiscrises
oasisoases

Key Points about the pluralization of “thesis”:

  • The plural follows a specific rule of changing the ‘-is’ ending to ‘-es’.
  • This pattern is consistent with other Greek-derived words.
  • The pronunciation changes with the plural form, ending in “-eez.”

To clarify usage, consider these examples:

  • Singular: The student’s thesis was commended for its clarity.
  • Plural: The professor read all the submitted theses before the conference.

Singular Form of Thesis

The singular form of ‘thesis’ is of notable interest due to its origins and distinct pluralization.

Origination and Definition:

  • Etymology : Derived from the ancient Greek word τίθημι (tithēmi), which means “to put” or “to place.”
  • Meaning : It is a statement or theory put forward to be maintained or proved.

Usage in Academia:

  • A significant piece of writing prepared by a student to obtain a university degree or diploma.
  • Often involves original research and substantiates a particular view or argument.

Table 1: Notable Features of ‘Thesis’

FeaturesDescription
Pronunciation/ˈθiːsɪs/
Syllable StructureTwo
Grammatical NumberSingular

Table 2: Contextual Examples

ContextExample Sentence
In a Proposal“Her proposal was accepted by the advisory committee.”
During Defense“He defended his rigorously to earn his master’s degree.”
In Academic Writing“The central of the book is well-supported with evidence.”

Definition of Thesis

A thesis is a substantial piece of scholarly writing that is typically required to obtain a master’s or doctoral degree. It represents the author’s research and findings in their chosen field of study. A thesis serves as evidence that the student has acquired the knowledge necessary to be considered a scholar in the field. Here, two key aspects of a thesis will be described through tables:

Purpose and Composition of a Thesis:

To present original researchIntroduction
To showcase the author’s understanding and proficiencyLiterature Review
To contribute to the academic communityMethodology
To fulfill a requirement for a graduate degreeResults/Discussion
 Conclusion

Characteristics of a Thesis:

  • Focused : It should have a clear, concise premise or central argument.
  • Researched : Employs rigorous methodologies to gather and analyze data.
  • Structured : Contains defined sections that present information logically.
  • Cited : Includes proper citations of sources that support or contrast the thesis.
  • Reviewed : Undergoes scrutiny by academic peers or supervisors.

Other Irregular Plural Nouns Ending in -sis/ses

Below you will find two tables categorized by common and less common irregular plurals that follow this pattern.

Common Irregular Plurals:

SingularPlural
analysisanalyses
hypothesishypotheses
parenthesisparentheses
thesistheses

This pattern is often observed with words that have Greek origins.

Less Common Irregular Plurals:

SingularPlural
basisbases
crisiscrises
oasisoases

It is important to recognize these forms to maintain grammatical accuracy in writing and speech. Below is a list of examples used in sentences:

  • When multiple scientific hypotheses are tested, the results can lead to important discoveries.
  • During the editing process, Jane had to review all the parentheses to ensure clarity in her writing.
  • Geographers study multiple oases in the desert to understand these unique ecosystems.
  • His thesis on renewable energy was well-received, and many theses on the subject reference his work.

Examples of Thesis (Singular) in Sentences

Here are examples that demonstrate its usage in various sentences.

In Academic Context

Subject Area Sentence
Literature His thesis explores the symbolism in Victorian poetry.
Science The thesis provides a groundbreaking approach to climate change mitigation.

In Everyday Discourse

Informal setting : During the debate, his thesis was that space exploration is no longer just a dream but a necessity.

  • Discussing beliefs : Her thesis is that all public spaces should offer free Wi-Fi.
  • Opinion : They argued the thesis that high taxes discourage spending.

Examples of Theses (Plural) in Sentences

Here are some examples of how “theses” can be used in sentences:

The library’s collection includes theses from graduates over the decades. Indicates possession of multiple papers by the library.
She compared multiple theses to ensure her research was comprehensive. Shows the act of reviewing several papers.
The committee requested summaries of the proposed theses before approval. Used as the subject of the committee’s requests.
Theses covering revolutionary medical findings were presented at the conference. Theses acting as the main topic at a professional event.

Education Setting : Graduate students often struggle to find unique topics for their theses as most ideas have been extensively explored.

  • Evaluating the structure and arguments of different theses can help one build a stronger dissertation.

Origin of the Word Thesis

The term thesis originates from the ancient Greek word θέσις (thésis), which means “a proposition” . Historically, this term has played a crucial role in both rhetorical and academic contexts. It denotes a statement that a writer intends to support and prove. In academic circles, thesis often refers to a document that presents the author’s research and findings and is submitted in support of candidature for a degree or professional qualification.

Etymological Background

The journey of the word from its Greek roots to the modern English language reflects the changing dynamics of educational and scholarly practices over the centuries.

Greek OriginModern English Equivalent
θέσις (thésis)Thesis

As a carryover from Greek to Latin, the word made its way into English, maintaining its original Greek plural form:

SingularPlural
ThesisTheses

Usage in Academia

In academia, the word has been used since the late Middle Ages to denote a scholarly work written by students aiming to obtain a university degree. Over time, the use of thesis expanded from merely referring to a proposition to a lengthy document providing evidence of comprehensive research.

Historical Evolution:

  • Middle Ages : Referred to propositions for a degree.
  • Renaissance : Emphasized individual research.
  • Modern Usage : Extensive research documents for higher education degrees.

Areas of Impact:

  • Rhetoric : Considered as a premise to be argued.
  • Academic Research : Reflects comprehensive study in a field.

Similar Posts

What’s the plural of child: understanding simple english plurals.

When it comes to the term child, the plural form doesn’t follow the common rule of simply adding an ‘s’ or ‘es’ to the end of the word. Instead, the term children is used to refer to more than one child. This irregularity is a significant aspect of English grammar and vocabulary that learners and…

Accept vs Except: Understanding the Differences

Definitions and Usage: Accept is a verb that means “to receive something willingly” or “to agree with something offered.” Except, on the other hand, means “to exclude” or “to leave out.” It is important to note that accept and except are not interchangeable and using one instead of the other can completely change the meaning…

What Are Contractions in Grammar: List of the Most Commonly Used Examples

While they are prevalently used in daily speech, contractions have specific rules and patterns that guide their written form. The most commonly used contractions are often the ones that combine pronouns or nouns with verbs, such as “I’m” for “I am” or “it’s” for “it is.” Although contractions are typically taught at a basic level…

Is It If I Were or If I Was: Decoding the Correct Usage of Were vs. Was

In particular, “was” is the first-person and third-person singular past tense form of the verb “to be,” which implies that it relates to one individual in the past. Conversely, “were” is used with the second person singular, all plural subjects, and also with the first and third person singular subjects when forming the subjunctive mood,…

What’s the Past Tense of Shoot: Understanding Verb Conjugation

When it comes to the past form of ‘shoot,’ it is crucial to recognize that ‘shoot’ is an irregular verb. This means that it does not follow the standard pattern of adding -ed to create the past tense. Instead, the past tense of ‘shoot’ is ‘shot.’ The confusion often arises when differentiating between the simple…

What’s the Plural of Tuna: Understanding Collective Nouns in English

The term “tuna” can be used both as a singular and a plural noun. When discussing more than one individual tuna, “tuna” remains the same, following a pattern similar to other nouns that do not change their form between singular and plural, such as “sheep” or “deer.” However, when referring to different species or types…

Leave a Reply Cancel reply

You must be logged in to post a comment.

  • Daily Crossword
  • Word Puzzle
  • Word Finder
  • Word of the Day
  • Synonym of the Day
  • Word of the Year
  • Language stories
  • All featured
  • Gender and sexuality
  • All pop culture
  • Writing hub
  • Grammar essentials
  • Commonly confused
  • All writing tips
  • Pop culture
  • Writing tips

Advertisement

[ thee -sis ]

He vigorously defended his thesis on the causes of war.

Synonyms: proposal , contention , theory

  • a subject for a composition or essay.
  • a dissertation on a particular subject in which one has done original research, as one presented by a candidate for a diploma or degree.
  • Music. the downward stroke in conducting; downbeat. Compare arsis ( def 1 ) .
  • a part of a metrical foot that does not bear the ictus or stress.
  • (less commonly) the part of a metrical foot that bears the ictus. Compare arsis ( def 2 ) .
  • Philosophy. Hegelian dialectic

/ ˈθiːsɪs /

  • a dissertation resulting from original research, esp when submitted by a candidate for a degree or diploma
  • a doctrine maintained or promoted in argument
  • a subject for a discussion or essay
  • an unproved statement, esp one put forward as a premise in an argument
  • music the downbeat of a bar, as indicated in conducting
  • (in classical prosody) the syllable or part of a metrical foot not receiving the ictus Compare arsis
  • philosophy the first stage in the Hegelian dialectic, that is challenged by the antithesis
  • The central idea in a piece of writing, sometimes contained in a topic sentence .

Discover More

Word history and origins.

Origin of thesis 1

Example Sentences

“The Saudis have been proving the thesis of the film — they do in fact have an army,” said Thor Halvorssen, founder and chief executive of the nonprofit Human Rights Foundation, which funded the movie.

It’s a hypothesis that Bush pursued in her master’s thesis, and last year she began attending virtual Goth parties in a final round of field work before defending her doctoral thesis later this year.

While this partnership was planned prior to the coronavirus outbreak, co-founder Jordana Kier said the pandemic instantly proved out the expansion thesis.

They’ve had to defend that thesis for a very, very long time in front of a variety of different customers and different people.

Over the past decade, In-Q-Tel has been one of the most active investors in the commercial space sector, with a broad investment thesis that touches many aspects of the sector.

In “Back Home,” Gil also revisits the nostalgia for the South explored in his Johns Hopkins thesis, “Circle of Stone.”

At least father and son were in alignment on this central thesis: acting “gay”—bad; being thought of as gay—bad.

Her doctoral thesis, says Ramin Takloo at the University of Illinois, was simply outstanding.

Marshall McLuhan long ago argued the now accepted thesis that different mediums have different influences on thinking.

He wrote his Master's thesis on the underrepresentation of young people in Congress.

And indeed for most young men a college thesis is but an exercise for sharpening the wits, rarely dangerous in its later effects.

It will be for the reader to determine whether the main thesis of the book has gained or lost by the new evidence.

But the word thesis, when applied to Systems, does not mean the 'position' of single notes, but of groups of notes.

This conclusion, it need hardly be said, is in entire agreement with the main thesis of the preceding pages.

Sundry outlying Indians, with ammunition to waste, took belly and knee rests and strengthened the thesis to the contrary.

Related Words

  • proposition
  • supposition

What Is The Plural Of Thesis?

Plural word for  thesis.

The plural form of thesis is theses , pronounced [ thee -seez ]. The plurals of several other singular words that end in -is are also formed in this way, including hypothesis / hypotheses , crisis / crises , and axis / axes . A similar change is made when pluralizing appendix as appendices . 

Irregular plurals that are formed like theses derive directly from their original pluralization in Latin and Greek.

An Encylopedia Britannica Company

  • Britannica Homepage
  • Ask the Editor
  • Word of the Day
  • Core Vocabulary
  • Most Popular
  • Browse the Dictionary
  • My Saved Words
  • thesis (noun)
  • She wrote her thesis on Renaissance Nativity scenes.
  • a master's/doctoral thesis on the effects of global warming
  • New evidence supports his thesis .
  • We disagreed with the basic thesis of the report.
  • The book's central thesis is that propaganda influences the masses in important ways.
and ?
the Japanese art of folding paper into shapes that look like birds, animals, etc.
  • About Us & Legal Info
  • Partner Program
  • Privacy Notice
  • Terms of Use
  • Pronunciation Symbols

: a long piece of writing on a particular subject that is done to earn a degree at a university

: a statement that someone wants to discuss or prove

Full Definition of THESIS

Origin of thesis, related to thesis, other education terms, rhymes with thesis, definition of thesis for kids, learn more about thesis.

  • thesis novel
  • thesis play

Seen & Heard

What made you want to look up thesis ? Please tell us where you read or heard it (including the quote, if possible).

  • Spanish Central
  • Learner's ESL Dictionary
  • WordCentral for Kids
  • Visual Dictionary
  • SCRABBLE ® Word Finder
  • Merriam-Webster's Unabridged Dictionary
  • Britannica English - Arabic Translation
  • Nglish - Spanish-English Translation
  • Advertising Info
  • Dictionary API
  • Privacy Policy
  • Terms of Use
  • About Our Ads
  • Browser Tools
  • The Open Dictionary
  • Browse the Dictionary
  • Browse the Thesaurus
  • Browse the Spanish-English Dictionary
  • Browse the Medical Dictionary

Grammar Monster Logo

paper-free learning

menu

  • conjunctions
  • determiners
  • interjections
  • prepositions
  • affect vs effect
  • its vs it's
  • your vs you're
  • which vs that
  • who vs whom
  • who's vs whose
  • averse vs adverse
  • 250+ more...
  • apostrophes
  • quotation marks
  • lots more...
  • common writing errors
  • FAQs by writers
  • awkward plurals
  • ESL vocabulary lists
  • all our grammar videos
  • idioms and proverbs
  • Latin terms
  • collective nouns for animals
  • tattoo fails
  • vocabulary categories
  • most common verbs
  • top 10 irregular verbs
  • top 10 regular verbs
  • top 10 spelling rules
  • improve spelling
  • common misspellings
  • role-play scenarios
  • favo(u)rite word lists
  • multiple-choice test
  • Tetris game
  • grammar-themed memory game
  • 100s more...

The Plural Forms of Words

What are the plural forms of words.

Word TypeExample in the
Singular Form
Example in the
Plural Form
Noun
Determiner
Pronoun
Verb trying trying

the plural forms of words

Forming the Plurals of Nouns

  • 1 dog > 2 dogs
  • 1 house > 2 houses
  • 1 video > 2 videos
  • How to form the plurals of nouns (spelling rules)
  • How to form the plurals of compound nouns (e.g., mothers-in-law, Knights Templar)
  • How to form the plurals of abbreviations (e.g., MOTs, L.R.S.s)

What Are the Plural Pronouns?

PronounName
Ifirst person singular
Yousecond person singular
He / She / Itthird person singular
Wefirst person plural
Yousecond person plural
Theythird person plural

What Is the Plural Form of a Verb?

PronounNameExample Verb
Example Verb
Example Verb
Ifirst person singularI ateI eatI will eat
Yousecond person singularYou ate You eat You will eat
He / She / Itthird person singularHe ate He eatsHe will eat
Wefirst person pluralWe ateWe eatWe will eat
Yousecond person pluralYou ateYou eatYou will eat
Theythird person pluralThey ateThey eatThey will eat

What Are Plural Demonstrative Determiners?

wrong cross

Forming the Plurals of Foreign Words

  • stadium > stadia or stadiums
  • datum > data
  • radius > radii or radiuses
  • agendum > agenda

"Plural" Also Applies to Zero

  • 0 dogs (plural)
  • 1 dog (singular)
  • 2 dogs (plural)
  • 3 dogs (plural)
  • There are no alligators in the lake.

author logo

This page was written by Craig Shrives .

Learning Resources

more actions:

This test is printable and sendable

Help Us Improve Grammar Monster

  • Do you disagree with something on this page?
  • Did you spot a typo?

Find Us Quicker!

  • When using a search engine (e.g., Google, Bing), you will find Grammar Monster quicker if you add #gm to your search term.

You might also like...

Share This Page

share icon

If you like Grammar Monster (or this page in particular), please link to it or share it with others. If you do, please tell us . It helps us a lot!

share icon

Create a QR Code

create QR code

Use our handy widget to create a QR code for this page...or any page.

< previous lesson

X Twitter logo

next lesson >

Study.com

In order to continue enjoying our site, we ask that you confirm your identity as a human. Thank you very much for your cooperation.

Cambridge Dictionary

  • Cambridge Dictionary +Plus

Meaning of theses in English

Examples of theses.

{{randomImageQuizHook.quizId}}

Word of the Day

Your browser doesn't support HTML5 audio

to become dry, smaller, and covered with lines as if by crushing or folding, or to make something do this

Fakes and forgeries (Things that are not what they seem to be)

Fakes and forgeries (Things that are not what they seem to be)

write the plural of thesis

Learn more with +Plus

  • Recent and Recommended {{#preferredDictionaries}} {{name}} {{/preferredDictionaries}}
  • Definitions Clear explanations of natural written and spoken English English Learner’s Dictionary Essential British English Essential American English
  • Grammar and thesaurus Usage explanations of natural written and spoken English Grammar Thesaurus
  • Pronunciation British and American pronunciations with audio English Pronunciation
  • English–Chinese (Simplified) Chinese (Simplified)–English
  • English–Chinese (Traditional) Chinese (Traditional)–English
  • English–Dutch Dutch–English
  • English–French French–English
  • English–German German–English
  • English–Indonesian Indonesian–English
  • English–Italian Italian–English
  • English–Japanese Japanese–English
  • English–Norwegian Norwegian–English
  • English–Polish Polish–English
  • English–Portuguese Portuguese–English
  • English–Spanish Spanish–English
  • English–Swedish Swedish–English
  • Dictionary +Plus Word Lists
  • All translations

To add theses to a word list please sign up or log in.

Add theses to one of your lists below, or create a new one.

{{message}}

Something went wrong.

There was a problem sending your report.

COMMENTS

  1. What Is the Plural of Thesis

    Thesis becomes theses in plural form for two reasons: 1) The word thesis has a Greek root, and theses is how it is pluralized in that original language. 2) There are many English words ending with -is that take on -es endings when pluralized: e.g., crisis becomes crises. The pluralization isn't all that unique.

  2. The Plural of Thesis

    "Theses" is the only way to make the noun "thesis" plural. Confusion arises because some mistakenly believe that all nouns ending in "s" should form a plural that adds "es" to the end of the word. When a noun ends with "is," you need to replace the "is" with an "es" to form the plural. This is because its plural form derives from Greek.

  3. Thesis Definition & Meaning

    The meaning of THESIS is a dissertation embodying results of original research and especially substantiating a specific view; especially : one written by a candidate for an academic degree. ... college, or graduate school, students often have to write a thesis on a topic in their major field of study. In many fields, a final thesis is the ...

  4. What's the Plural of Thesis? (Thesises? Theses?)

    What's the plural of "thesis"? Thesis, (and its plural theses) is an example of one of the many common English words that has roots elsewhere. In this case, thesis is a word that has roots all the way back to Ancient Greek. Like other similarly structured words: diagnosis, synthesis, analysis, oasis, crisis, nemesis and the like, thesis is by no means the only frequently used Greek word ...

  5. THESIS

    THESIS meaning: 1. a long piece of writing on a particular subject, especially one that is done for a higher…. Learn more.

  6. What is the plural of thesis?

    The plural form of thesis is theses . Find more words! Many scientists, including people writing doctoral theses, had access to the bones, and they were laboriously studied. Leuthner was fiercely attacked for his theses at the time by social democratic leader Karl Kautsky. This synthesis is based on public domain data, including published ...

  7. thesis

    thesis (plural theses) ( rhetoric) A proposition or statement supported by arguments. (by extension) A lengthy essay written to establish the validity of a thesis (sense 1.1), especially one submitted in order to complete the requirements for a non- doctoral degree in the US and a doctoral degree in the UK; a dissertation .

  8. thesis noun

    Collocations Scientific research Scientific research Theory. formulate/ advance a theory/ hypothesis; build/ construct/ create/ develop a simple/ theoretical/ mathematical model; develop/ establish/ provide/ use a theoretical/ conceptual framework; advance/ argue/ develop the thesis that…; explore an idea/ a concept/ a hypothesis; make a prediction/ an inference

  9. Plural of Thesis: A Quick Guide for English Learners

    It is a crucial element of academic writing and is often required for a degree or certification. The plural of thesis is "theses.". In English, most nouns form the plural by adding an "s" at the end. However, "thesis" is one of the few exceptions to this rule. The word "thesis" has a Greek root, and "theses" is how it is ...

  10. Whats the Plural of Thesis: Understanding Singular and Plural Forms

    The plural of "thesis" adheres to the Greek-rooted pattern, changing the singular -is to a plural -es. Accurate use of "thesis" and "theses" reflects scholarly precision in both written and oral communication. Awareness of correct pluralization extends to other similar nouns ending in -sis, emphasizing the importance of understanding language origins.

  11. THESIS

    THESIS definition: 1. a long piece of writing on a particular subject, especially one that is done for a higher…. Learn more.

  12. THESIS Definition & Meaning

    Thesis definition: a proposition stated or put forward for consideration, especially one to be discussed and proved or to be maintained against objections. See examples of THESIS used in a sentence.

  13. THESIS definition and meaning

    7 meanings: 1. a dissertation resulting from original research, esp when submitted by a candidate for a degree or diploma 2. a.... Click for more definitions.

  14. Dissertation vs. Thesis—What's the Difference?

    What is a dissertation vs. a thesis? In American English, a dissertation is a research paper that's required to earn a doctorate degree, while a thesis is a research paper required to earn a master's degree. Dissertations and theses (the plural of thesis) are often mixed up because they're both lengthy research papers written for higher education, especially as part of a master's or ...

  15. Thesis Definition & Meaning

    plural theses / ˈθiːˌsiːz/. Britannica Dictionary definition of THESIS. [count] 1. : a long piece of writing on a particular subject that is done to earn a degree at a university. She wrote her thesis on Renaissance Nativity scenes. a master's/doctoral thesis on the effects of global warming. 2. formal : a statement that someone wants to ...

  16. THESIS definition in American English

    thesis in American English. (ˈθisɪs) noun Word forms: plural -ses (-siz) 1. a proposition stated or put forward for consideration, esp. one to be discussed and proved or to be maintained against objections. He vigorously defended his thesis on the causes of war. 2. a subject for a composition or essay. 3.

  17. Thesis

    Full Definition of THESIS. 1. a (1): the unstressed part of a poetic foot especially in accentual verse (2): the longer part of a poetic foot especially in quantitative verse b: the accented part of a musical measure : downbeat — compare arsis. 2. a: a position or proposition that a person (as a candidate for scholastic honors) advances and ...

  18. Plural Forms of Words

    Forming the Plurals of Nouns In most cases, a noun will form its plural by adding "s" to the singular form. For example: 1 dog > 2 dogs; 1 house > 2 houses; 1 video > 2 videos; The spelling rules for forming the plurals of nouns (e.g., whether to add "s," "es," or "ies") usually depend on how the noun ends.

  19. What is the plural of thesis?

    150. See singular and plural nouns, singular and plural possessive nouns, singular and plural forms of irregular nouns, and singular and plural nouns examples. Answer to: What is the plural of thesis? By signing up, you'll get thousands of step-by-step solutions to your homework questions.

  20. THESES

    THESES meaning: 1. plural of thesis 2. plural of thesis . Learn more.

  21. THESES

    THESES definition: 1. plural of thesis 2. plural of thesis . Learn more.

  22. Thesis Definition & Meaning

    Thesis definition: A proposition that is maintained by argument.