Formal:
* A hui hou kakou: This is the most common and formal way to say goodbye. It literally means "until we meet again."
* A hui hou: This is a shorter version of the above, still formal but slightly less so.
Informal:
* Aloha ʻoe: This is a very common phrase meaning "farewell" or "goodbye," but can also be used as "hello" or "love." It is a versatile phrase and can be used in many situations.
* Mahalo nui loa, a hui hou: This means "thank you very much, until we meet again," which is a nice and polite way to say goodbye.
* E ʻoluʻolu e hoʻi mai: This means "please come back," which is a friendly way to say goodbye, implying you want to see them again.
Romantic:
* Ke aloha e hoʻomālamalama iā ʻoe: This is a beautiful and romantic phrase meaning "May love light your way," which is a lovely way to say goodbye to someone you care about.
It's important to note that "Aloha" is a very versatile word in Hawaiian and can be used in many different contexts. It can mean "hello," "goodbye," "love," and "peace." It's a powerful word that encompasses many emotions and is a symbol of Hawaiian culture.