S: (v) call back (call_back%2:32:09::) (return or repeat a telephone call) "I am busy right now--can you call back in an hour?"; "She left a message but the contractor never called back"
S: (v) recall (recall%2:32:02::), call back (call_back%2:32:08::) (summon to return) "The ambassador was recalled to his country"; "The company called back many of the workers it had laid off during the recession"