A shallow area underneath a building where pipes, cables, and utilities are run, too low for a person to stand but high enough to crawl through.
From 'crawl' + 'space.' This is a modern architectural term that literally describes the movement needed to navigate it—a compound word coined in 20th-century building design.
Crawlspaces are horror movie gold because they're liminal—not quite inside, not quite outside, just low enough to trap you in that vulnerable crawling position. Architects gave us the nightmare fuel!
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