To greet someone in the evening, you would say "Bon soir!" This is the appropriate greeting for that time of day.
The other options are:
- "Bonne nuit!" means "Good night!" and is typically used when parting ways at the end of the evening.
- "Bonjour!" means "Good morning!" and is used earlier in the day.
- "Au revoir!" means "Goodbye!" and is not a greeting.