/ Thesaurus / S Synonyms of screw jack Find synonyms for: Noun1. jackscrew, screw jack, jackusage: screw-operated jackWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language