FAN

noun

1. A hand-held device consisting of concertinaed material, or slats of material, gathered together at one end, that may be opened out into the shape of a sector of a circle and waved back and forth in order to move air towards oneself and cool oneself.
2. An electrical or mechanical device for moving air, used for cooling people, machinery, etc.
3. The action of fanning; agitation of the air.

verb

1. To blow air on (something) by means of a fan (hand-held, mechanical or electrical) or otherwise.
2. To slap (a behind, especially).
3. (usually to fan out) To move or spread in multiple directions from one point, in the shape of a hand-held fan.