noun, noun or participle which takes 'suru', transitive verb, intransitive verb
start of a performance; curtain time
Used for the beginning of a play, concert, movie, or similar event. Often seen in announcements and schedules.
開演は午後7時です。
The performance starts at 7 p.m.
まもなく開演いたします。
The show will begin shortly.
Compound of 開 (kai, 'open') and 演 (en, 'performance'). The exact historical derivation is uncertain, but the kanji straightforwardly indicate the start of a performance.