caller
🇺🇸
/ˈkɔːlər/
🇬🇧
/ˈkɔːlə(r)/
A person who makes a phone call.
The caller left a message on the answering machine.
A person who visits a place, like a house or an office.
There was a caller at the door, but they left before I could answer.
A person who leads a square dance by giving instructions.
The caller shouted the moves so everyone could follow the dance steps.