stage whisper

US /ˈsteɪdʒ ˌwɪspər/
UK /ˈsteɪdʒ ˌwɪspər/
"stage whisper" picture
1.

aparté

a loud whisper intended to be heard by an audience but supposedly not by other characters in a play or by people nearby in real life

:
He delivered the secret with a stage whisper, making sure everyone in the room heard it.
Il a livré le secret avec un aparté, s'assurant que tout le monde dans la pièce l'entende.
The actor delivered his aside as a loud stage whisper.
L'acteur a prononcé son aparté comme un fort aparté.