# opera hat

> English word · Noun

## Definitions
1. A kind of collapsible top hat.

## Etymology
From the common practice of storing them in their flattened state under one's seat at the opera.

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