Hawai'i vs Hawaii

Hawai'i and Hawaii both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hawai'i	Yes	No	No	No
Hawaii	Yes	No	No	No

As nouns, Hawai'i and Hawaii are synonyms defined as:

Hawai'i and Hawaii: a state in the United States in the central Pacific on the Hawaiian Islands

Other synonyms of Hawai'i include Aloha State, Haw., HI.

Hawai'i (noun)	Hawaii (noun)
a state in the United States in the central Pacific on the Hawaiian Islands	a state in the United States in the central Pacific on the Hawaiian Islands
	the largest and southernmost of the Hawaii islands; has several volcanic peaks