HI Scrabble 5 Words With Friends 4 Definition noun an expression of greeting. — synonyms: hello, hullo, howdy, how-do-you-do noun a state in the United States in the central Pacific on the Hawaiian Islands. — synonyms: Hawaii, Hawai'i, Aloha_State, Haw. See all 1 words you can make from HI → 2-letter words Words starting with H Words ending with I ← Unscramble different letters