An act of winking (a blinking of only one eye), or a message sent by winking.

A brief period of sleep; especially forty winks.

A brief time; an instant.

The smallest possible amount.

A subtle allusion.

(tiddlywinks) Synonym of tiddlywink (“small disc used in the game of tiddlywinks”)

(chiefly Britain) Synonym of periwinkle

(intransitive) To close one's eyes.

(intransitive) Usually followed by at: to look the other way, to turn a blind eye.

(intransitive) To close one's eyes quickly and involuntarily; to blink.

(transitive, intransitive) To blink with only one eye as a message, signal, or suggestion, usually with an implication of conspiracy. (When transitive, the object may be the eye being winked, or the message being conveyed.)

(intransitive) To gleam fitfully or intermitently; to twinkle; to flicker.