
Insulate
Physical Barrier
Insulate implies a physical layer that acts as a barrier to heat, sound, or electricity.

Adding foam to insulate the walls.
Energy Efficiency
Insulating your home can mean a practical step for saving energy and reducing bills.

They decided to insulate the attic before winter.
Safety Measure
Insulating is also a safety measure, especially when dealing with electricity.

All electrical wires have to be well-insulated.
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