Breadcrumb Home > Thesaurus > S Synonyms of seawater Find synonyms for: Noun 1. seawater, saltwater, brine, water, H2O usage: water containing salts; "the water in the ocean is all saltwater" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of seawater (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: felicitous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language