Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “upside down”

upside down

adjective, adverb [not gradable]  /ˈʌpˌsɑɪd ˈdɑʊn/ us  
having the part that is usually at the top turned to be at the bottom: He put the pots upside down on a dish towel to let them dry.
(Definition of upside down from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of upside down?
Add Cambridge dictionaries to your browser to your website

Definitions of “upside down” in other dictionaries

Word of the Day


a small company that makes beer, usually using traditional methods, and often has a restaurant where its beer is served

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More