Read the dictionary definition of caller. All definitions for this word.
1. a social or business visitor
1. the room was a mess because he hadn't expected company
2. the person initiating a telephone call
1. there were so many callers that he finally disconnected the telephone
3. the person who convenes a meeting
1. who is the caller of this meeting?
4. someone who proclaims or summons in a loud voice
1. the callers were mothers summoning their children home for dinner
5. a person who announces the changes of steps during a dance
1. you need a fiddler and a caller for country dancing
6. the bettor in a card game who matches the bet and calls for a show of hands
7. an investor who buys a call option
8. fresh
1. caller fish
9. providing coolness
1. a cooling breeze
2. `caller' is a Scottish term as in `a caller breeze'