- (transitive) US Canadian to prepare (a house, car, etc) to withstand winter conditions
WordReference Random House Learner's Dictionary of American English © 2026
win•ter•ize /ˈwɪntəˌraɪz/USA pronunciation
v. [~ + object], -ized, -iz•ing.
WordReference Random House Unabridged Dictionary of American English © 2026- Buildingto prepare (a house, car, etc.) to withstand cold weather:to winterize the house by adding insulation.
win•ter•ize
(win′tə rīz′),USA pronunciation v., -ized, -iz•ing.
v.t.
v.i.
win′ter•i•za′tion, n.
win′ter•iz′er, n.
v.t.
- Buildingto prepare (an automobile, house, etc.) for cold weather by (in automobiles) adding antifreeze and changing oil or (in houses) adding insulation, heating units, etc.
v.i.
- Buildingto winterize an automobile, house, etc.
- winter + -ize 1925–30
win′ter•iz′er, n.
Collins Concise English Dictionary © HarperCollins Publishers::
winterize, winterise /ˈwɪntəˌraɪz/ vb
'winterize' also found in these entries (note: many are not synonyms or translations):