# button up

> English word · Verb

## Definitions
1. To fasten with a button or buttons.
2. To fasten all the buttons on a coat, or similar item of clothing, to keep warm.
3. To conclude; to finalize; to put the finishing touches (on).
4. Alternative form of button up one's lip.
5. To seal off (a military vehicle or facility).

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