Definitions 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

  Example: "Perfect your French in Paris!"

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

  Example: "A perfect circle"

• adjective:   precisely accurate or exact

  Example: "Perfect timing"

• name:  A surname (very rare: popularity rank in the U.S.: #50045)