Breadcrumb Home > Thesaurus > W Synonyms of watt Find synonyms for: Noun1. watt, W, power unitusage: a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm2. Watt, James Wattusage: Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of watt (Dictionary) ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language