Here's a breakdown:
* Au revoir: This is the standard French way to say goodbye.
* ma: means "my"
* chère: means "dear"
* fille: means "daughter"
You can also say:
* Adieu, ma fille: This is a more formal and slightly less common way of saying goodbye.
* Je t'aime, ma fille: This means "I love you, my daughter," which is a very affectionate way to say goodbye.