Breadcrumb Home > Thesaurus > K Synonyms of kauai Find synonyms for: Noun 1. Kauai, Kauai Island usage: an island of Hawaii to the northwest of Oahu WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of kauai (Dictionary) ✖ Related Content Daily Word Quiz: derogate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language