How do you say Have a good night french?

There are a few ways to say "Have a good night" in French, depending on the level of formality and the context:

Formal:

* Bonne nuit (pronounced bon-noo-ee) - This is the most common and literal translation of "good night."

* Passez une bonne nuit (pronounced pah-say oon bon noo-ee) - This translates to "Have a good night." It is more formal than "Bonne nuit."

Informal:

* Bonne soirée (pronounced bon swa-ray) - This is more commonly used to say "good evening," but can be used informally for "good night" as well.

* Dors bien (pronounced dor bee-en) - This translates to "Sleep well." It is a more casual and friendly way to say "good night."

For friends or family:

* Fais de beaux rêves (pronounced fay de bo rayv) - This means "Have sweet dreams." It's a very affectionate way to say goodnight.

The best choice will depend on who you're talking to and the situation.