showtime /ˈʃoʊˌtaɪm/noun 2exclamation 1forms 1 noun2 •The time at which an entertainment event is set to begin.Ushers announced movie showtimes from the moment the A picture started because the wraparound material was simply not the main attraction. — 1999 •(figurative) The time for action."It's showtime," said Staff Sergeant Wallace Mains, a section leader in the 81mm mortar platoon, as he picked up his gear […] — 2003 exclamation1 •A declaration that something is about to happen, particularly that the person speaking is about to act. formsshowtimes