[ win-tuh-rahyz ]
/ ˈwɪn təˌraɪz /

verb (used with object), win·ter·ized, win·ter·iz·ing.

to prepare (an automobile, house, etc.) for cold weather by (in automobiles) adding antifreeze and changing oil or (in houses) adding insulation, heating units, etc.

verb (used without object), win·ter·ized, win·ter·iz·ing.

to winterize an automobile, house, etc.
Also especially British, win·ter·ise.

Origin of winterize

First recorded in 1925–30; winter + -ize

Related forms

win·ter·i·za·tion, nounwin·ter·iz·er, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for winterize



/ (ˈwɪntəˌraɪz) /


(tr) US and Canadian to prepare (a house, car, etc) to withstand winter conditions

Derived Forms

winterization or winterisation, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012