Webster's Revised Unabridged Dictionary · 1913

Wink

Wink , intransitive verb

[Old English winken, Anglo-Saxon wincian; akin to Dutch wenken, German winken to wink, nod, beckon, Old High German winchan, Swedish vinka, Danish vinke, Anglo-Saxon wancol wavering, Old High German wanchal wavering, wanch{not transcribed}n to waver, German wanken, and perhaps to English weak; compare Anglo-Saxon wincel a corner. Compare Wench, Wince, v. i.]

1.
To nod; to sleep; to nap. [Obsolete]
Although I wake or wink. — Chaucer
2.
To shut the eyes quickly; to close the eyelids with a quick motion.
He must wink, so loud he would cry. — Chaucer
And I will wink, so shall the day seem night. — Shakespeare
They are not blind, but they wink. — Tillotson
3.
To close and open the eyelids quickly; to nictitate; to blink.
A baby of some three months old, who winked, and turned aside its little face from the too vivid light of day. — Hawthorne
4.
To give a hint by a motion of the eyelids, often those of one eye only.
Wink at the footman to leave him without a plate. — Swift
5.
To avoid taking notice, as if by shutting the eyes; to connive at anything; to be tolerant; -- generally with at.
The times of this ignorance God winked at. — Acts xvii. 30
And yet, as though he knew it not, His knowledge winks, and lets his humors reign. — Herbert
Obstinacy can not be winked at, but must be subdued. — Locke
6.
To be dim and flicker; as, the light winks.
Collocations (1)
Winking monkey (Zoology) , the white-nosed monkey (Cersopithecus nictitans).

Wink , transitive verb

To cause (the eyes) to wink. [Colloquial]

Wink , noun

1.
The act of closing, or closing and opening, the eyelids quickly; hence, the time necessary for such an act; a moment.
I have not slept one wink. — Shakespeare
I could eclipse and cloud them with a wink. — Donne
2.
A hint given by shutting the eye with a significant cast. — Sir. P. Sidney
The stockjobber thus from Change Alley goes down, And tips you, the freeman, a wink. — Swift