Breadcrumb Home > Thesaurus > W Synonyms of watercannon Find synonyms for: Noun 1. water cannon, watercannon, hose, hosepipe usage: a hose (carried on a truck) that fires water under high pressure to disperse crowds (especially crowds of rioters) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of watercannon (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language