English Reference

Word

insides

Phoneticsin·sides, stress on the first syllable

US/ˈɪnsaɪdz/

UK/ɪnsˈaɪdz/

Plural noun

Definition

n. the inner parts of something, especially the organs inside a person's or animal's body. You often use this word when talking about how your stomach feels.

n. the internal parts or organs of a person, animal, or object. Typically refers to the digestive system or internal mechanisms in a general, non-technical way.

Examples

“The spicy food really upset my insides.”

“He took the clock apart to see how its insides worked, but he couldn't put it back together.”

“The cold water sent a sudden, sharp shiver through her insides, making her regret the impulsive dive into the mountain lake.”

Examples

simple

“The spicy food really upset my insides.”

contextual

“He took the clock apart to see how its insides worked, but he couldn't put it back together.”

complex

“The cold water sent a sudden, sharp shiver through her insides, making her regret the impulsive dive into the mountain lake.”

Usage

Takes plural verb agreement; often used informally to refer to the stomach or bowels.

Pitfall

My inside is hurting.

My insides are hurting.

When referring to body organs or internal parts, the word is used in the plural form and requires a plural verb.

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
Occasional
Level
B1 · Intermediate
Updated

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