# fill out

> English word · Verb · IPA /fɪl ˈaʊt/

## Definitions
1. To complete a form or questionnaire with requested information.
2. To have one's physique expand with maturity or with surplus weight.
3. To fill up; to make full.
4. Used other than figuratively or idiomatically: see fill, out.

## Etymology
In the sense of to complete a form, originally attested in American English; possibly as a calque of German ausfüllen. Later spread to British English, where it now competes with the traditional expression fill in.

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