# fire up

> English word · Verb

## Definitions
1. To ignite.
2. Of an engine or similar, to start.
3. To launch; to run.
4. To excite; to infuse with energy.
5. To grow irritated or angry.

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