Formal:
* Kwaheri: This is the most common and formal way to say goodbye.
* Kwa heri: This is another formal way to say goodbye, and it is often used in written communication.
Informal:
* Kwaheri sana: This is a more affectionate way to say goodbye.
* Baadae: This means "later" and is a casual way to say goodbye.
* Tutaonana: This means "we'll see each other again" and is a common way to say goodbye to someone you expect to see soon.
Other:
* Samahani: This means "excuse me" and can also be used as a polite way to say goodbye.
* Mungu akubariki: This means "God bless you" and is a common way to say goodbye in a religious context.
The best way to choose which goodbye to use depends on your relationship with the person you are saying goodbye to and the situation.