fan-n; 2 Senses

Sense Number 1: a follower, enthusiast, aficionado of some activity or person

He is a loyal Red Sox fan.
The actor signed autographs for his fans.
I became a big fan of backing up my computer after it crashed once.
Science fiction fans will love that movie.

WordNet 1.7 Sense Numbers: 2, 3

Sense Number 2: a device for creating a movement of air

I bought two silk Japanese fans.
This electric fan doesn't cool the room very well.
Flying birds sometimes get sucked into the fans of jet engines.

WordNet 1.7 Sense Numbers: 1