To say 'good evening' in French you say 'bonsoir'. This is pronounced as 'bon swor'.
ce soir
bonsoir
soir or nuit
Samedi soir
In the evening, same use as good evening or good night in english
"Bonsoir" in French means "good evening." It is a common greeting used to wish someone a pleasant evening or to say hello in the evening.
"Un soir pluvieuse"
bonsoir chacun
Bonsoir, monsieur.
"bonsoir mon amour"
vous voir ce soir