Dictionary
weath•er•ize
Pronunciation: (we&thslash;'u-rīz"), [key]—
v.t., -ized, -iz•ing.
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".Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.