# built-in

> English word · Adjective · IPA /ˈbɪltɪn/

## Definitions
1. Constructed as a nondetachable part of a larger structure.
2. Being an essential and permanent part of something.
3. Being an included feature that normally comes as an extra.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/built-in