# casque

> English word · Noun · IPA /kɑːsk/

## Definitions
1. A helmet.
2. A hard structure on the head of some birds, such as cassowaries, some hornbills and guineafowl, and some reptiles such as chameleons and basilisks.
3. Synonym of galea.

## Etymology
Borrowed from French casque. Doublet of casco and cask.

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