crawl space
noun
Definition of crawl space
: a shallow unfinished space beneath the first floor or under the roof of a building especially for access to plumbing or wiring
From the M-W Editors
1946
First Known Use of crawl space
1946
CRAWL SPACE Defined for English Language Learners
crawl space
noun
Definition of crawl space for English Language Learners
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: a space under the first floor or roof of a building that is not high enough to stand up in
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