1wink 
/ˈwɪŋk/ noun
plural winks /ˈwɪŋk/ noun [count] 1 : an act of closing and opening one eye very quickly often as a way of giving a secret signal or private message to someone
▪ Her wink told me she was just kidding. ▪ “I knew you could do it,” he said with a wink. ▪ He told her that he was working late, then gave me a wink. [=winked at me] 2 informal : a very short amount of time
▪ It all disappeared in a wink. [=in an instant] ▪ She said hello, and (as) quick as a wink [=instantly], she was gone. ▪ I didn't get a wink of sleep last night. = I didn't sleep a wink last night. [=I didn't sleep at all last night] — see also forty winks
▪ Her wink told me she was just kidding. ▪ “I knew you could do it,” he said with a wink. ▪ He told her that he was working late, then gave me a wink. [=winked at me]
▪ It all disappeared in a wink. [=in an instant] ▪ She said hello, and (as) quick as a wink [=instantly], she was gone. ▪ I didn't get a wink of sleep last night. = I didn't sleep a wink last night. [=I didn't sleep at all last night] — see also forty winks
tip (someone) the wink — see 6tip
