# brush up

> English word · Verb

## Definitions
1. To paint, or make clean or bright with a brush.
2. To review; to improve an existing but rusty or underdeveloped skill.
3. To beat up, annoy or insult (someone).

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