/ Thesaurus / P Synonyms of pan american union Find synonyms for: Noun1. Pan American Union, secretariat, secretariateusage: the administrative agency of the Organization of American StatesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language