/ Thesaurus / R Synonyms of rifle ball Find synonyms for: Noun1. rifle ball, bullet, slugusage: a bullet designed to be fired from a rifle; no longer made spherical in shapeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language