Breadcrumb Home > Thesaurus > B Synonyms of breastplate Find synonyms for: Noun 1. breastplate, aegis, egis, armor plate, armour plate, armor plating, plate armor, plate armour usage: armor plate that protects the chest; the front part of a cuirass WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of breastplate (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: truculent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language