Perfect

Brought to consummation or completeness; completed; not defective nor redundant; having all the properties or qualities requisite to its nature and kind; without flaw, fault, or blemish; without error; mature; whole; pure; sound; right; correct.

Well informed; certain; sure.

Hermaphrodite; having both stamens and pistils; -- said of flower.

The perfect tense, or a form in that tense.

To make perfect; to finish or complete, so as to leave nothing wanting; to give to anything all that is requisite to its nature and kind.

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