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Definition of inside

inside

/ɪnˈsaɪd/
in · side

Plural:insides
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inside Lexical Profile

inside Game Scores & Validity

• adverb

1

Within or toward the interior of a building, room, or container; indoors.

Example

"When the thunderstorm began, we quickly carried the garden chairs inside."


2

In one's mind, heart, or inner emotional state, as opposed to outward appearance.

Example

"She smiled calmly during the presentation, even though she was nervous inside."

Synonyms
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Antonyms
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• noun

1

The inner part, surface, or space of something; the interior.

Example

"The inside of the wooden jewelry box was lined with soft velvet."


2

The side of a curved track, road, or path that is nearer to the center of the curve, or the part of a traffic lane closer to the shoulder.

Example

"The runner overtook her rival on the inside during the final lap of the race."


3

The stomach and bowels; the internal digestive organs (usually used in the plural).

Example

"The spicy meal made his insides feel unsettled for the rest of the evening."

Synonyms
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Antonyms
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• preposition

1

Within the confines or interior of a place, container, or object.

Example

"All visitors must remain inside the designated viewing area during the tour."


2

In less than a specified period of time.

Example

"The technician promised that the server issue would be resolved inside an hour."

Antonyms
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• adjective

1

Situated on, belonging to, or facing the interior or inner side of something.

Example

"Please store your passport in the inside pocket of your jacket for safekeeping."


2

Originating from or restricted to privileged members within an organization or group; confidential or exclusive.

Example

"The financial regulator investigated whether the trader had acted on inside information."

Synonyms
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Antonyms
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Word Nuance & Usage

In standard usage, the preposition 'inside' does not require 'of' before a noun object (e.g., 'inside the house'), though 'inside of' is common in informal American English and required in time expressions like 'inside of an hour'.

• Rhymes for inside

Word Origin & Etymology

First recorded in late Middle English (around the 15th century) as a compound of 'in' and 'side', originally used as a noun denoting the interior part of something before expanding into adjective, adverb, and prepositional uses.

Cite this Entry


Wordmom. (2026). Definition of Inside. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/inside
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