Breadcrumb Home > Thesaurus > A Synonyms of atrium Find synonyms for: Noun 1. atrium, chamber usage: any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart) 2. atrium, court, courtyard usage: the central area in a building; open to the sky WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of atrium (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: pernicious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language