/ Thesaurus / D Synonyms of downing street Find synonyms for: Noun1. Downing Streetusage: a street of Westminster in London; "the Prime Minister lives at No. 10 Downing Street"2. Downing Street, government, authorities, regimeusage: the British governmentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: crockery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language