(transitive) To recall; to cancel or call a halt to. / (intransitive) To telephone in one's notice of a day's absence from work.

(informal, slang) A telephone call made to request a sexual encounter. / (informal, slang) A sexual encounter arranged by telephone.

(transitive) To make a booty call.

A situation in which an injury or other undesirable outcome is narrowly avoided. / A close brush with nuclear war.

(broadcasting) A combination of letters and numbers used to identify a radio or television station.

A business location where phone calls are handled, often regarding customer service, sales and telemarketing.

Alternative spelling of call center

(chiefly US) To make the decisions; to be in charge; to give orders.

An order to report for military service.

(transitive) To retrieve from personal or computer memory. / (transitive) To summon (someone) to report for military service. / (transitive) To select e.g. to a sports squad.