say it: EK-spoh-nuhnt
exponent is a noun meaning "a person who pleads for a cause or propounds an idea". It carries 3 recorded senses.
a person who pleads for a cause or propounds an idea
someone who expounds and interprets or explains
a mathematical notation indicating the number of times a quantity is multiplied by itself
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for exponent come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.