Definition of "Perfect" :

noun: a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)

verb: make perfect or complete

"Perfect your French in Paris!."

adjective: precisely accurate or exact

"Perfect timing."

adjective: without qualification; used informally as (often pejorative) intensifiers

"A perfect idiot."

adjective: being complete of its kind and without defect or blemish

"A perfect circle."