What does insulate mean?
insulate
Definition
To cover a wall, a roof or a pipe with a material that keeps heat or cold from passing through.
Example sentences
The builder said we should insulate the gable first — that's where all the heat escapes.
The builder said we should insulate the gable first — that's where all the heat escapes.
Nobody ever insulated the hot water pipe, so the shower takes ages to warm up.
Nobody ever insulated the hot water pipe, so the shower takes ages to warm up.