/ Thesaurus / S Synonyms of semiautomatic firearm Find synonyms for: Noun1. semiautomatic firearm, autoloader, self-loaderusage: an autoloader that fires only one shot at each pull of the triggerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language