Breadcrumb Home > Thesaurus > B Synonyms of basement Find synonyms for: Noun 1. basement, cellar, floor, level, storey, story usage: the lowermost portion of a structure partly or wholly below ground level; often used for storage 2. basement, support usage: the ground floor facade or interior in Renaissance architecture WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of basement (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: yrrhicvictory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language