fan in WordNet English dictionary

1. an ardent follower and admirer
   fan  buff  devotee  lover 
   
2. a device for creating a current of air by movement of a surface or surfaces
   fan 
   
3. an enthusiastic devotee of sports
   sports fan  fan  rooter 
   

1. make (an emotion) fiercer
   "fan hatred"
   fan 
   
2. separate the chaff from by using air currents
   "She stood there winnowing chaff all day in the field"
   winnow  fan 
   
3. strike out (a batter), (of a pitcher)
   fan 
   
4. agitate the air
   fan