/ Thesaurus / E Synonyms of expatiation Find synonyms for: Noun1. expatiation, expansion, enlargement, elaborationusage: a discussion (spoken or written) that enlarges on a topic or theme at length or in detailWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language