weatherize

US: /ˈwɛðəˌraɪz/ ,(weᵺ′ə rīz′)

WordReference Random House Learner's Dictionary of American English © 2026

weath•er•ize• /ˈwɛðəˌraɪz/   v. [~ + object] , -ized, -iz•ing. 

1. Building to make (a building) secure against cold weather, as by adding insulation.

weath•er•i•za•tion /ˌwɛðərɪˈzeɪʃən/  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2026

weath•er•ize  (weᵺ′ə rīz′), v.t., -ized, -iz•ing. 

1. Building to make (a house or other building) secure against cold or stormy weather, as by adding insulation, siding, and storm windows.

Also,[esp. Brit.,] weath′er•ise′. 

• weather + -ize 1940–45

weath′er•i•za′tion, n.