/ Thesaurus / S Synonyms of sea tangle Find synonyms for: Noun1. sea tangle, tang, kelpusage: any of various kelps especially of the genus LaminariaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language