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tesis

thesis

noun TEH-sees Less Common
Communication Writing

Origin: From Greek thesis (a placing, proposition), via Latin. Entered Spanish and English through the same route.

Also means

argument

Usage Note

Tesis is invariable in the plural — la tesis / las tesis — because it ends in an unstressed -is. It refers both to a doctoral dissertation and to any central argument or proposition. The adjective doctoral commonly precedes it in academic contexts (tesis doctoral). The broader term for a defended argument is tesis as well as argumento.

Examples

"Está escribiendo su tesis doctoral."

Natural Translation

She is writing her doctoral thesis.

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