Perfect is an adjective meaning having all the required or desirable elements, qualities, or characteristics; as good as it is possible to be.
In grammar, perfect refers to a tense of verbs used in describing completed actions.
The word "perfect" can also be used as:
1. A verb meaning to make something completely free from faults or defects
2. In music, describing intervals that are neither major nor minor
3. In mathematics, referring to a number equal to the sum of its proper divisors