to nod; to sleep; to nap.-to shut the eyes quickly; to close the eyelids with a quick motion.-to close and open the eyelids quickly; to nictitate; to blink.-to give a hint by a motion of the eyelids, often those of one eye only.-to avoid taking notice, as if by shutting the eyes; to connive at anything; to be tolerant; -- generally with at.-to be dim and flicker; as, the light winks.-to cause (the eyes) to wink.-the act of closing, or closing and opening, the eyelids quickly; hence, the time necessary for such an act; a moment.-a hint given by shutting the eye with a significant cast.