1 wink, flicker, Technical nictitate:
She blinked in the strong light.
2 twinkle, flicker, gleam, glimmer, shimmer, flash, sparkle, scintillate, coruscate:
A billion stars blinked in the wintry sky.
3 flinch, wince, shrink, quail, blench, recoil, start, move:
She didn't even blink when she had the injection.
4 blink at. wink at, ignore, overlook, disregard:
That inspector has been known to blink at health violations.
5 wink, flicker:
He switched the cards in the blink of an eye.
6 on the blink. Colloq out of order, broken, in disrepair, not working or operating, not operational, Slang US out of whack, on the fritz:
The fridge is on the blink again.