/ Thesaurus / J Synonyms of jet propulsion Find synonyms for: Noun1. jet propulsion, reaction propulsionusage: propulsion by means of the discharge of a jet of fluid toward the rearWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language