Available Definitions:
1) v. i. - To open and close the eyes rapidly; to wink.
2) v. i. - To close the eyes upon a fault; to wink (at); to fail or forbear by intention to discover an act; to permit a proceeding, as if not aware of it; -- usually followed by at.
3) v. t. - To shut the eyes to; to overlook; to pretend not to see.