Breadcrumb Home > Thesaurus > B Synonyms of breechblock Find synonyms for: Noun 1. breechblock, breech closer, blockage, block, closure, occlusion, stop, stoppage usage: a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of breechblock (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