air hole
American Heritage Dictionary:
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air hole
n.
- A hole or opening through which gas or air may pass.
- An opening in the frozen surface of a body of water.
- See air pocket.
In the foundation of a house, an opening that provides ventilation for a crawl space.
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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