/ Thesaurus / R Synonyms of republic of costa rica Find synonyms for: Noun1. Costa Rica, Republic of Costa Ricausage: a republic in Central America; one of the most politically stable countries in Latin AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language