# copilot

> English word · Noun · frequency rank #54,709

## Definitions
1. A backup or assistant pilot of an aircraft.
2. An assistant, especially one that uses artificial intelligence.

## Etymology
From co- + pilot.

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