Breadcrumb Home > Thesaurus > P Synonyms of portsmouth Find synonyms for: Noun 1. Portsmouth usage: a port city in southeastern Virginia on the Elizabeth River opposite Norfolk; naval base; shipyards 2. Portsmouth usage: a port town in southeastern New Hampshire on the Atlantic Ocean 3. Portsmouth, Pompey usage: a port city in southern England on the English Channel; Britain's major naval base WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of portsmouth (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: locution Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language