# fire on all cylinders

> English word · Verb

## Definitions
1. To operate as effectively as possible.

## Etymology
In reference to an internal combustion engine, in which using all cylinders allows the engine to operate most effectively.

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