# insulation vs insulator

> English confusable word pair

## The two words

### insulation
*noun · IPA /ˌɪnsjʊˈleɪʃən/ · frequency rank #11,726*
The act of insulating; detachment from other objects; isolation.

### insulator
*noun · IPA /ˈɪn.s(j)ə.leɪ.tə(ɹ)/ · frequency rank #39,864*
A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).

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