Synonym For Basement. 1 a room or set of rooms below the surface of the ground. Find more ways to say basement, along with related words, antonyms and example phrases at thesaurus.com, the world's most trusted free thesaurus.
Best synonyms for 'basement' are 'cellar', 'downstairs' and 'vault'.
All forms of the word What are another words for basement? The synonym basement synonymous definition words: Our thesaurus contains synonyms of basement in 11 different contexts.