/ Thesaurus / S Synonyms of sea wrack Find synonyms for: Noun1. eelgrass, grass wrack, sea wrack, Zostera marina, aquatic plant, water plant, hydrophyte, hydrophytic plantusage: submerged marine plant with very long narrow leaves found in abundance along North Atlantic coasts2. sea wrack, wrack, seaweedusage: growth of marine vegetation especially of the large forms such as rockweeds and kelpWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language