to cover, line, or separate with a material that prevents or reduces the passage, transfer, or leakage of heat, electricity, or sound: to insulate an electric wire with a rubber sheath; to insulate a coat with down.

to place in an isolated situation or condition; segregate.

to prevent or reduce the transmission of electricity, heat, or sound to or from (a body, device, or region) by surrounding with a nonconducting material

to isolate or detach