# insulation

> English word · Noun · IPA /ˌɪnsjʊˈleɪʃən/ · frequency rank #11,726

## Definitions
1. The act of insulating; detachment from other objects; isolation.
2. The state of being insulated; detachment from other objects; isolation.
3. Any of a variety of materials designed to reduce the flow of heat, either from or into a building.
4. The act of separating a body from others by nonconductors, so as to prevent the transfer of electricity, heat, or sound
5. The state of a body so separated.
6. a medium in which it is possible to maintain an electrical field with little supply of energy from additional sources.

## Etymology
From insulate + -ion.

## Easily confused with
- **isolation** (https://plainspell.com/en/vs/insulation-vs-isolation)
- **insulator** (https://plainspell.com/en/vs/insulation-vs-insulator)
- **inflation** (https://plainspell.com/en/vs/inflation-vs-insulation)
- **incubation** (https://plainspell.com/en/vs/incubation-vs-insulation)
- **inhalation** (https://plainspell.com/en/vs/inhalation-vs-insulation)
- **inoculation** (https://plainspell.com/en/vs/inoculation-vs-insulation)

## Common misspellings (15)
`innsulation`, `insluation`, `inssulation`, `insualtion`, `insulaiton`, `insulasion`, `insulatino`, `insulationn`, `insulatoin`, `insulattion`, `insullation`, `insultaion`, `inuslation`, `isnulation`, `nisulation`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/insulation