curtain-up
US /ˈkɜːr.tn̩ ˌʌp/
UK /ˈkɜːr.tn̩ ˌʌp/

1.
tirai dibuka, awal pertunjukan
the beginning of a theatrical performance
:
•
The audience settled down as curtain-up approached.
Penonton mulai tenang saat tirai dibuka mendekat.
•
We need to be in our seats before curtain-up.
Kita harus sudah duduk sebelum tirai dibuka.