Definition of caller-id:
(n) :
(telephony) The person who makes a telephone call.
(n) :
A visitor.
(n) :
(bingo) The person who stands at the front of the hall and announces the numbers.
(n) :
(programming) A function that calls another (the callee).
(n) :
(dance) The person who directs dancers in certain dances, such as American line dances and square dances.
(n) :
A whistle or similar item used to call foxes.