Breadcrumb Home > Thesaurus > C Synonyms of coastguard Find synonyms for: Noun 1. coastguard, military service, armed service, service usage: a military service responsible for the safety of maritime traffic in coastal waters WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of coastguard (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: praedial Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language