# bubblehead

> English word · Noun

## Definitions
1. A stupid person.
2. A submariner; bubble-head.
3. A navy hard hat or salvage diver.

## Etymology
* From bubble + head.
* (diver): Inspired by the shape of the old spun-copper diving helmet.

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