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weatherize

[weth-uh-rahyz]
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verb (used with object), weath·er·ized, weath·er·iz·ing.
  1. to make (a house or other building) secure against cold or stormy weather, as by adding insulation, siding, and storm windows.
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Also especially British, weath·er·ise.

Origin of weatherize

First recorded in 1940–45; weather + -ize
Related formsweath·er·i·za·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018