Definitions of wink:

• noun:   closing one eye quickly as a signal
• noun:   a reflex that closes and opens the eyes rapidly
• noun:   a very short time (as the time it takes the eye blink or the heart to beat)
• verb:   signal by winking

  Example: "She winked at him"

• verb:   force to go away by blinking
• verb:   briefly shut the eyes
• verb:   gleam or glow intermittently
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #14439)