say it: GREE-see
greasy is an adjective meaning "containing an unusual amount of grease or oil". It carries 2 recorded senses.
containing an unusual amount of grease or oil
“greasy hamburgers”
“oily fried potatoes”
“oleaginous seeds”
smeared or soiled with grease or oil
“greasy coveralls”
“get rid of rubbish and oily rags”
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 greasy 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.