thesis

noun
the·​sis | \ ˈthē-səs , British especially for sense 3 ˈthe-sis\
plural theses\ ˈthē-​ˌsēz \

Definition of thesis

1 : a dissertation embodying results of original research and especially substantiating a specific view especially : one written by a candidate for an academic degree
2a : a proposition to be proved or one advanced without proof : hypothesis
b : a position or proposition that a person (such as a candidate for scholastic honors) advances and offers to maintain by argument
3a(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
4 : the first and least adequate stage of dialectic — compare synthesis

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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

She wrote her thesis on Renaissance Nativity scenes. a master's 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.
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Recent Examples on the Web

Indeed, none of his fellow Hotel Company Marines had written their college thesis on African territorial disputes before the International Court of Justice, as Mueller had. Garrett M. Graff, WIRED, "The Untold Story of Robert Mueller's Time in Combat," 15 May 2018 At least 10 of those were arrested while celebrating a colleague's successful defense of his university thesis, a meeting the authorities deemed subversive, the group said. Fox News, "'Castrate the enemy': Violence grips Burundi ahead of vote," 8 May 2018 But Ismail, who is writing a doctoral thesis on the role of masculinity in Indonesian terrorist networks, said such a paternalistic approach is likely to fail. Carla Power, latimes.com, "'We have four generations of former terrorists here today': Rehabilitating extremists in Indonesia," 20 Apr. 2018 Coskey earned a doctorate in leadership studies at the University of San Diego and wrote her thesis on the United Way. Jeff Mcdonald, sandiegouniontribune.com, "United Way of San Diego County parts ways with CEO after 18 months," 10 Jan. 2018 Was this your big moment to unleash your senior thesis on the world? Elizabeth Angell, Town & Country, "The Good Place Creator Michael Schur on How He Made Philosophy a Pop Culture Phenomenon," 6 Dec. 2018 Broadcom CEO Hock Tan is matching Smith’s thesis and raising him an industry: All enterprise technologies look alike to Broadcom. Aaron Pressman, Fortune, "Data Sheet—The Thinking Behind Broadcom's CA Technologies Acquisition," 12 July 2018 The PyPI event came two years after a college student’s bachelor thesis used a similar technique to get an unauthorized Python module executed more than 45,000 times on more than 17,000 separate domains. Dan Goodin, Ars Technica, "Widely used open source software contained bitcoin-stealing backdoor," 26 Nov. 2018 Atlanta’s Beltline was a creative grad school thesis turned into multibillion-dollar urban redevelopment. Patrick Sisson, Curbed, "Miami’s Underline underscores potential of park projects," 19 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thesis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of thesis

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

History and Etymology for thesis

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

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Statistics for thesis

Last Updated

2 Feb 2019

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Time Traveler for thesis

The first known use of thesis was in the 14th century

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More Definitions for thesis

thesis

noun

English Language Learners Definition of thesis

: a long piece of writing on a particular subject that is done to earn a degree at a university
formal : a statement that someone wants to discuss or prove

thesis

noun
the·​sis | \ ˈthē-səs \
plural theses\ -​ˌsēz \

Kids Definition of thesis

1 : a statement that a person wants to discuss or prove
2 : an essay presenting results of original research

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More from Merriam-Webster on thesis

Rhyming Dictionary: Words that rhyme with thesis

Thesaurus: All synonyms and antonyms for thesis

Spanish Central: Translation of 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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