fan

1 fan /ˈfæn/ noun
plural fans
1 fan
/ˈfæn/
noun
plural fans
Britannica Dictionary definition of FAN
[count]
: a machine or device that is used to move the air and make people or things cooler: such as
a  : a flat device that is held in your hand and waved back and forth in front of your face
b  : an electrical machine that has turning blades — see picture at car

hit the fan

informal
: to cause a lot of anger and trouble — used especially to describe what happens when people find out about something that makes them very angry — often used in the impolite phrase when the shit hits the fan
2 fan /ˈfæn/ verb
fans; fanned; fanning
2 fan
/ˈfæn/
verb
fans; fanned; fanning
Britannica Dictionary definition of FAN
1 
[+ object] : to move air on or toward (someone or something) with a fan
◊ To fan a fire is literally to blow air onto a fire so that it will burn more strongly. In figurative use the phrase fan the fires/flames means to make an emotional situation more dangerous, so that people become angrier and more likely to act in a violent way.
2 
baseball, informal : to strike out
[+ object]
[no object]

fan out

[phrasal verb]
fan out or fan out (something) or fan (something) out
: to spread apart or to cause (something) to spread apart
3 fan /ˈfæn/ noun
plural fans
3 fan
/ˈfæn/
noun
plural fans
Britannica Dictionary definition of FAN
[count]
: a person who likes and admires someone (such as a famous person) or something (such as a sport or a sports team) in a very enthusiastic way