thesis
US /ˈθiː.sɪs/
UK /ˈθiː.sɪs/
1.
a statement or theory that is put forward as a premise to be maintained or proved.
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Her main thesis was that the economic crisis was caused by deregulation.
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He presented a compelling thesis on the future of artificial intelligence.
2.
a long essay or dissertation involving personal research, written by a candidate for a university degree.
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She spent a year writing her doctoral thesis.
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His master's thesis focused on renewable energy sources.