Definition of weatherize verb from the Oxford Advanced American Dictionary

 

weatherize

 verb
verb
NAmE//ˈwɛðəˌraɪz//
 
weatherize somethingVerb Forms present simple I / you / we / they weatherize
 
he / she / it weatherizes
 
past simple weatherized
 
-ing form weatherizing
 
 
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to protect a building against the effects of cold weather, for example by providing insulation
See the Oxford Advanced Learner's Dictionary entry: weatherize