plural theses
ˈthē-ˌsēz 
1
: a dissertation embodying results of original research and especially substantiating a specific view
especially
: one written by a candidate for an academic degree
2
a
: 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
3
4
: the first and least adequate stage of dialectic compare synthesis
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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
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.
Recent Examples on the Web
To be sure, Azure and AI remain key to our investment thesis.
—
Morgan Chittum, CNBC, 5 Nov. 2024
Aschenbrenner’s startling thesis about exponentially accelerating AI progress rests on one core premise: that AI will soon become powerful enough to carry out AI research itself, leading to recursive self-improvement and runaway superintelligence.
—Rob Toews, Forbes, 3 Nov. 2024
Her thesis film, 4.1 Miles, received a 2017 Peabody Award and an Academy Award nomination for Best Documentary, Short Subject.
—Matthew Carey, Deadline, 1 Nov. 2024
This was met with a lot of angry words, none fit to be printed here, along with the general thesis that Lois is a horrible person living in a hell of her own making.
—Andy Swift, TVLine, 30 Oct. 2024
See all Example Sentences for thesis 
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Morgan Chittum, CNBC, 5 Nov. 2024
Aschenbrenner’s startling thesis about exponentially accelerating AI progress rests on one core premise: that AI will soon become powerful enough to carry out AI research itself, leading to recursive self-improvement and runaway superintelligence.
—Rob Toews, Forbes, 3 Nov. 2024
Her thesis film, 4.1 Miles, received a 2017 Peabody Award and an Academy Award nomination for Best Documentary, Short Subject.
—Matthew Carey, Deadline, 1 Nov. 2024
This was met with a lot of angry words, none fit to be printed here, along with the general thesis that Lois is a horrible person living in a hell of her own making.
—Andy Swift, TVLine, 30 Oct. 2024
See all Example Sentences for thesis
Dictionary Entries Near thesis
Cite this Entry
“Thesis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thesis. Accessed 26 Nov. 2024.
Copy CitationKids Definition
thesis
noun
the·sis
ˈthē-səs
plural theses
ˈthē-ˌsēz
1
: a statement put forth for discussion or proof : hypothesis
2
: a long essay presenting the results of original research
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