Formal:
* Kwaheri: This is the most common and general way to say goodbye.
* Kwaheri sana: This is a more formal and emphatic way to say goodbye, similar to "goodbye very much" in English.
Informal:
* Kwenda salama: This means "go in peace" and is a more friendly and personal way to say goodbye.
* Tutaonana: This means "we will see each other" and is a good way to say goodbye to someone you expect to see again soon.
* Baadaye: This means "later" and is a casual way to say goodbye.
Other:
* Habari: This literally means "news" but is often used as a greeting or farewell, similar to "hello" or "goodbye" in English.
* Ahsante: This means "thank you" and can also be used as a farewell, particularly if you are grateful for something the person did.
The best way to say goodbye in Swahili will depend on the situation and your relationship with the person you are saying goodbye to.