# megatsunami

> English word · Noun · IPA /ˌmɛɡətsuːˈnɑːmi/

## Definitions
1. An extremely large tsunami-like wave caused by an avalanche or landslide displacing large amounts of water very quickly.
2. A very large tsunami.

## Etymology
From mega- + tsunami.

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