/ Thesaurus / C Synonyms of capital of argentina Find synonyms for: Noun1. Buenos Aires, capital of Argentinausage: capital and largest city of Argentina; located in eastern Argentina near Uruguay; Argentina's chief port and industrial and cultural centerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language