Definition of thesis

• n. - A position or proposition which a person advances and offers to maintain, or which is actually maintained by argument.
• n. - Hence, an essay or dissertation written upon specific or definite theme; especially, an essay presented by a candidate for a diploma or degree.
• n. - An affirmation, or distinction from a supposition or hypothesis.
• n. - The accented part of the measure, expressed by the downward beat; -- the opposite of arsis.
• n. - The depression of the voice in pronouncing the syllables of a word.
• n. - The part of the foot upon which such a depression falls.