Breadcrumb Home > Thesaurus > P Synonyms of piston Find synonyms for: Noun 1. Piston, Walter Piston usage: United States neoclassical composer (1894-1976) 2. piston, plunger, mechanical device usage: mechanical device that has a plunging or thrusting motion WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of piston (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: hagiography Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language