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⇱ upside down - WordReference.com Dictionary of English


upside down

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UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˌʌpsaɪdˈdaʊn/


WordReference Random House Learner's Dictionary of American English © 2026
ˈup•side ˈdown, adv. 
  1. with the upper part at the bottom.
  2. in or into complete disorder;
    topsy-turvy:turned the room upside down in their search.

WordReference Random House Unabridged Dictionary of American English © 2026
upside down, 
    1. with the upper part undermost.
    2. in or into complete disorder;
      topsy-turvy:The burglars turned the house upside down.
    • 1300–50; re-formation (see upside) of Middle English upsedoun, earlier up so doun (see up, so1, down1; sense of so obscure)
    upside-down, adj. 
    upside-downness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::
upside down adj
  1. (usually postpositive; upside-down when prenominal) turned over completely; inverted
  2. (upside-down when prenominal) informal confused; muddled; topsy-turvy: an upside-down world
adv
  1. in an inverted fashion
  2. in a chaotic or crazy manner
Etymology: 16th Century: variant, by folk etymology, of earlier upsodown
'upside down' also found in these entries (note: many are not synonyms or translations):

🗣️Forum discussions with the word(s) "upside down" in the title:

'Left/Right' equivalent of upside down?
A monkey perched on a branch upside down by its tail.
an upside-down bugger of a payment
bring the bottle upside down
change dramatically vs turn upside down
crinkly plastic sound of a tightly wound frown turning upside down
do a process <upside down>
felt upside down and backside front [ felt wrong ]
have the world upside-down
head upside-down
His life < had turned> upside down [past perfect]
holding your book inverted/upside down.
it will turn their world exhilaratingly upside down
life Is / gets turned upside-down
matters in a world turned upside down.
mouth was <on upside down>
Opposite of hiding the book upside-down.
others swirl about, sideways and upside down
others swirl about, sideways and upside down
Place the tin upside down on a baking tray
Roll over/turn over/turn upside down
such that the text will be upside down
that picture is upside down
The bedsheet is put on upside down
the car turned upside down
turn over or upside down
turn the bottle upside down and shake
Turn vs tip upside down/ over
Turned my life upside down?
turned my views on the world upside down / turned upside down my views on the world...
more...

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