Closed and opened one eye quickly, usually as a secret signal or friendly gesture, or deliberately ignored something bad.
From Old English 'wincian' meaning 'to blink'. The word originally just meant to move the eyelids but evolved to include the specific social meaning of quick one-eyed movements.
Different cultures interpret winking completely differently—in some places it's flirting, in others it's rude, and in some it means a joke—making it a fascinating example of how the same body movement can mean opposite things!
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