What is the meaning of wink?

noun

• A very short time (as the time it takes the eye to blink or the heart to beat. )
  • usage: "if I had the chance I'd do it in a flash"
  • synonyms: blink of an eye, flash, heartbeat, instant, jiffy, split second, trice, twinkling, New York minute
• Closing one eye quickly as a signal.
• A reflex that closes and opens the eyes rapidly.
  • synonyms: blink, eye blink, blinking, winking, nictitation, nictation

verb

• Signal by winking.
  • usage: "She winked at him"
• Gleam or glow intermittently.
  • usage: "The lights were flashing"
  • synonyms: flash, blink, twinkle, winkle
• Briefly shut the eyes.
  • usage: "The TV announcer never seems to blink"
  • synonyms: blink, nictitate, nictate
• Force to go away by blinking.
  • usage: "blink away tears"
  • synonyms: blink, blink away