say it: ma-SKER-uh
mascara is a noun meaning "makeup that is used to darken and thicken the eye lashes". It carries one recorded sense.
makeup that is used to darken and thicken the eye lashes
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 mascara 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.