# turn upside down

> English word · Verb

## Definitions
1. To flip over; to rotate top to bottom.
2. To thoroughly examine.
3. To alter (something) significantly, often in a negative way.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/turn-upside-down