callers

noun

1. The person who makes a telephone call.

   - I've got someone on the line.

2. A visitor.

   a gentleman caller

3. (bingo) The person who stands at the front of the hall and announces the numbers.

4. A function that calls another (the callee).

5. A whistle or similar item used to call foxes.

6. The person who directs dancers in certain dances, such as American line dances and square dances.