upside down — with the upper part where the lower part should be; in or into an inverted position
Part of speech: ADVERB
Definition: with the upper part where the lower part should be; in or into an inverted position
Pronunciation (IPA): /ˈʌpsaɪd daʊn/
Example Sentences
- My cat thinks the world is upside down when I work from home.
- The earthquake turned their entire house upside down.
- She hung upside down from the monkey bars like a superhero.
upside down
ADVERB[/ˈʌpsaɪd daʊn/]
with the upper part where the lower part should be; in or into an inverted position

The toddler held the picture book upside down and giggled at the silly cat.
Got the picture? Now let's practice.
🎤Pronunciation
🌳Etymology
Origin
The phrase originated in the 17th century from the construction 'up side so down', literally meaning 'with the upper side facing downward'. Over time, these separate words merged into a single compound expression used to describe an inverted position.
Breakdown
up (upper part) + side (direction, surface) + down (lower part). The phrase combines directional terms to express complete inversion or reversal of normal orientation.
🎵Rhyme
🔗Collocations
📝Examples
“My cat thinks the world is upside down when I work from home.”
“The earthquake turned their entire house upside down.”
“She hung upside down from the monkey bars like a superhero.”
“The new manager turned the company policy upside down.”
📚Related Words
Synonyms
Antonyms
Related
Want to master 19,000+ words?
Sign up free for flashcards & quizzes.