Breadcrumb Home > Thesaurus > P Synonyms of perimeter Find synonyms for: Noun 1. margin, border, perimeter, boundary, edge, bound usage: the boundary line or the area immediately inside the boundary 2. perimeter, line usage: a line enclosing a plane areas 3. circumference, perimeter, size usage: the size of something as given by the distance around it WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of perimeter (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: cognoscenti Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language