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upside down

adverb

up·​side down ˈəp-ˌsīd-ˈdau̇n How to pronounce upside down (audio)
1
: in such a way that the upper and the lower parts are reversed in position
2
: in or into great disorder
turned their world upside down
upside-down adjective

Examples of upside down in a Sentence

You hung the picture upside down! To remove the plant, turn the pot upside down and tap gently on the bottom to loosen it. The baby was holding the book upside down.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But as the anticipation of the gender loomed, at the first ultrasound at eight weeks, everything turned upside down. Jordan Greene, PEOPLE, 26 Nov. 2025 To explain their life story here would spoil the movie, but as is the case in real life, things aren't always sunshine and roses for the Sardinas — one wildly unexpected event turns their world upside down. Gerrad Hall, Entertainment Weekly, 25 Nov. 2025 In a Reddit post shared on Thursday under the username u/Stealingursoda, the poster revealed what was inside her bedside water, a big cockroach lying upside down on the surface of the water, not making a single move. Maria Azzurra Volpe, MSNBC Newsweek, 24 Nov. 2025 The sedan came to rest upside down in Brush Creek, Gonzalez said. Caroline Zimmerman, Kansas City Star, 24 Nov. 2025 See All Example Sentences for upside down

Word History

Etymology

alteration of Middle English up so doun, from up + so + doun down

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of upside down was in the 15th century

Browse Nearby Words

Cite this Entry

“Upside down.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upside%20down. Accessed 27 Nov. 2025.

Kids Definition

upside down

adverb
up·​side down ˌəp-ˌsīd-ˈdau̇n How to pronounce upside down (audio)
1
: with the upper part underneath and the lower part on top
2
: in or into great disorder
upside-down adjective

Legal Definition

upside down

adjective
: underwater
upside down mortgages
upside down homes
upside down homeowners

More from Merriam-Webster on upside down

Last Updated: - Updated example sentences
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