"Aloha"
While "aloha" is commonly used as "hello" and "goodbye," it also expresses affection, love, and well-wishes, which encompasses the meaning of "regards."
You could also use phrases like:
* "Mahalo nui loa": This means "thank you very much" and can be used to convey appreciation and gratitude.
* "E komo mai": This means "welcome" and can be used to express a warm greeting and invitation.
Ultimately, the best way to convey "regards" in Hawaiian depends on the context and the specific message you want to convey.