English Reference

Word

indoors

Phoneticsin·doors, stress on the first syllable

US/ˈɪnˌdɔɹz/

UK/ɪndˈɔːz/

Adverb of place

Definitions

01inside a building

A2 · Elementary

adv. into or inside a building.

adv. into or within the interior of a building; functions as an adverb of place.

“It started to rain, so the children ran indoors to play.”

“When the temperature dropped below freezing, the event organisers decided to move the entire reception indoors to the main hall.”

Usage

Usually follows the verb or the object of the sentence.

Pitfall

It was raining, so we stayed at indoors.

It was raining, so we stayed indoors.

Do not use a preposition like 'at' or 'in' before 'indoors'; it functions as a complete adverbial phrase on its own.

Synonyms

Antonyms

02the interior space

B2 · Upper Intermediate Uncountable noun

n. the area inside a building.

n. the interior of a building or buildings in general; often used with 'the'.

“He spent too much time in the indoors and needed some fresh air.”

“The architect focused on bringing elements of nature into the indoors through large glass panels and internal gardens.”

Usage

Typically used as a singular noun preceded by the definite article.

Synonyms

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “indoors” in context.

Verb

01. go indoors

“It started to rain, so the children had to go indoors.”

verb + adv

02. keep the cat indoors

“We usually keep the cat indoors during the night for its safety.”

verb + noun + adv

03. move the party indoors

“When the wind got too strong, they had to move the party indoors.”

verb + noun + adv

04. spend time indoors

“Many office workers spend too much time indoors during the winter months.”

verb + noun + adv

05. stay indoors

“The weather was terrible, so we decided to stay indoors and watch a movie.”

verb + adv

Etymology

From in + doors, originally two words, representing earlier within doors.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · IntermediateOxford
Updated

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English Reference