An open and/or public audition, especially for actors and actresses.

(telephony) A telephone call for which, when the recipient of the call answers, there is no one on the other end.

A practical joke played by calling the unsuspecting victim on the telephone, usually pretending to be somebody else.

To call (an unsuspecting person) on the telephone as a practical joke.

(sports) A ruling by an umpire, referee, or similar official during a sporting event, based on his or her perception of events and in the absence of any objective measurement.

plural of call-out

plural of call out

(chiefly US, idiomatic) A choice or judgment which is difficult to make, especially one involving only two alternatives.

(idiomatic, performing arts) An audition which is open to the public and thus draws a large number of applicants, many of whom are inexperienced.

A box containing a telephone for use in emergency, usually mounted on a post in an area where normal access to telephones is inconvenient (such as on an interstate highway or a very long highway bridge)