caller
//ˈkɔːlər//
Noun
callerSingular
callersPlural
1
A person who makes a telephone call or visits someone.
The caller asked to speak to the manager.
2
A person who calls out numbers, instructions, or dance steps at an event.
The caller announced the next dance move to the crowd.
3
A person who makes a brief visit to someone's home.
We had several callers at the house this afternoon.