The definition of a thesis is a proposal or suggestion that is maintained by an argument.(noun)
An example of thesis is a research paper on why the United States should legalize marijuana.
See thesis in Webster's New World College Dictionary
noun pl. theses
Origin: L < Gr, a placing, position, proposition < base of tithenai, to put, place: see do
See thesis in American Heritage Dictionary 4
noun pl. the·ses (-sēz)
Origin: , from Greek
Origin: , from tithenai, to put; see dhē- in Indo-European roots
Origin: . Senses 5 and 6, Middle English
Origin: , from Late Latin, lowering of the voice
Origin: , from Greek, downbeat
Origin: , from tithenai.
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