From Longman Dictionary of Contemporary Englishopening nightˌopening ˈnight noun [countable, uncountable] APAMFthe first night that a new play, film etc is shown to the public SYN first night
Examples from the Corpus
opening night• Revelations did receive its usual good response, even on an opening night when the applause was otherwise seldom more than courteous.• The fans will be muffled, or the old spots will be reinstalled, by opening night.• Bord and Clarke teased in a giddy opening night telegram.• She insisted on fresh flowers every day placed next to a photograph of Stephen and herself at the opening night of Crystal Springs.• John as usual attended the opening night.• On the opening night she would be as much at home on the stage as she was in Holborn.• The opening night of the Folies had been postponed for two days. 