# insulate

/ˈɪnsəˌɫeɪt/ (US) · /ˈɪnsjʊlˌeɪt/ (UK)

Source: https://englishreference.com/word/insulate
Updated: 2026-08-27

## Senses

### 1. to protect against heat, sound, or electricity

verb · CEFR B2

to cover something with a special material so that heat, sound, or electricity cannot escape or enter.

For teachers: to apply a non-conducting material to a surface or object to prevent the transfer of heat, sound, or electricity.

- We need to insulate the attic to keep the house warm during the winter.
- The contractor recommended that we insulate the pipes with foam sleeves to prevent them from freezing during the unusually harsh winter months.

Usage: Often used in the passive voice when describing buildings or wires.

### 2. to protect from unpleasant influences

verb · CEFR C1 · Formal

to protect someone or something from harmful or unpleasant experiences or news.

For teachers: to isolate or protect a person or group from outside influences, especially those that are unpleasant or challenging.

- The wealthy family tried to insulate their children from the realities of the poor neighbourhood.
- The central bank's primary objective was to insulate the domestic economy from the volatile fluctuations of the international currency markets.

Usage: Usually takes the preposition 'from'.

## Examples

- We need to insulate the attic to save on heating costs.
- The new apartment building uses thick glass and double walls to insulate the residents from the city's constant noise.
- Engineers must ensure that the spacecraft is properly insulated against the extreme temperature fluctuations encountered during re-entry into the Earth's atmosphere.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.