meaning of english word thesis

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Definition of thesis

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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

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 25 Nov. 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

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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

Definitions on the go

Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.

Nearby entries

• thesaurus, n. 1823–
• thesaury, n. a1639–1708
• these, n. a1600–48
• these, pron. & adj. Old English–
• Thesean, adj. 1815–
• Theseid, n. 1725–
• Theseium, n. 1819–
• these-like, adj. 1644–
• thesial, adj. 1654
• thesicle, n. 1863–
• thesis, n. a1398–
• thesis-novel, n. 1934–
• thesis-play, n. 1902–
• thesmophilist, n. 1644–
• Thesmophorian, adj. 1891–
• Thesmophoric, adj. 1788–
• thesmothete, n. 1603–
• thesocyte, n. 1887–
• thesp, n. 1962–
• Thespian, adj. & n. 1675–
• Thespianism, n. 1914–

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Meaning & use

Pronunciation, compounds & derived words, entry history for thesis, n..

thesis, n. was first published in 1912; not yet revised.

thesis, n. was last modified in June 2024.

Revision of the OED is a long-term project. Entries in oed.com which have not been revised may include:

• corrections and revisions to definitions, pronunciation, etymology, headwords, variant spellings, quotations, and dates;
• new senses, phrases, and quotations which have been added in subsequent print and online updates.

Revisions and additions of this kind were last incorporated into thesis, n. in June 2024.

Earlier versions of this entry were published in:

OED First Edition (1912)

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OED Second Edition (1989)

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Citation details

Factsheet for thesis, n., browse entry.

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Meaning of thesis – Learner’s Dictionary

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thesis noun [C] ( WRITING )

Thesis noun [c] ( idea ).

(Definition of thesis from the Cambridge Learner's Dictionary © Cambridge University Press)

Translations of thesis

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thesis in American English

Thesis in british english, examples of 'thesis' in a sentence thesis, related word partners thesis, trends of thesis.

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In other languages thesis

• American English : thesis / ˈθisɪs /
• Brazilian Portuguese : tese
• Chinese : 论点
• European Spanish : tesis
• French : thèse
• German : These
• Italian : tesi
• Japanese : 主張
• Korean : 논지
• European Portuguese : tese
• Spanish : tesis
• Thai : ข้อสมมุติ, ข้อวินิจฉัย

Browse alphabetically thesis

• thesis play
• thesmothete
• All ENGLISH words that begin with 'T'

Related terms of thesis

• academic thesis
• central thesis
• doctoral thesis
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