/ Thesaurus / F Synonyms of fincen Find synonyms for: Noun1. Financial Crimes Enforcement Network, FinCEN, law enforcement agencyusage: a law enforcement agency of the Treasury Department responsible for establishing and implementing policies to detect money launderingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language