Insulate

You'll end up getting an electric shock if you don't insulate that wire.

Today's spacesuits are pressurized, have an oxygen supply, protect the astronaut from micrometeoroid bombardment while spacewalking, and insulate the astronaut from the severe temperature changes experienced in space.

Try to insulate yourself.

“Large amounts of snow fall on the surface late in the summer and quickly insulate the water from the subfreezing air temperatures above, allowing the water to persist all year long,” said Rick Forster, lead author and professor of geography at the University of Utah.

You should insulate the house.

Ceramic can be used to insulate power lines.