preposition / adverb / noun / adjective

inside

In or forming the inner part of something.

She keeps her spare keys inside a small kitchen drawer.

Etymology

The compound combines in with side to identify the inward-facing portion. It can describe location within something or the part that forms its interior.

More examples

It's cold outside, so we wait inside.
The inside of the box is lined with soft cloth.
His wallet fits neatly into the inside pocket.

Forms

inside · insides

Similar words

within: Emphasizes location within boundaries, often in more formal language.
interior: Names an inner space, especially in buildings or vehicles.
internal: Describes something situated or occurring within a body or system.