caller

Etymology

From Middle English callar, equivalent to call + -er.

noun

  1. (telephony) The person who makes a telephone call.
    - I've got someone on the line. - Who's the caller?
  2. A visitor.
    a gentleman caller
  3. (bingo) The person who stands at the front of the hall and announces the numbers.
  4. (programming) A function that calls another (the callee).
  5. A whistle or similar item used to call foxes.
  6. (dance">dance) The person who directs dancers in certain dances, such as American line dances and square dances.

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