0 past simple and past participle of upend --
1 to push or move something so that the part that usually touches the ground is not touching the ground any more: --
She upended the chessboard halfway through the game because she was losing.
A surviving photograph captures the machine upended on its side as it falls off the houseboat.
The shape of the building is very unusual, looking similar to an upended sugarloaf.
It works by way of surface tension that prevents liquid from being spilled even when the cup is upended.
The name "flatiron" refers their resemblance to an upended, household flatiron.
To prove this theory, he filled a long glass tube (sealed at one end) with mercury and upended it into a dish also containing mercury.
When the stick is upended, the pebbles fall to the other end of the tube, making a sound reminiscent of rain falling.
A place where social norms were upended was inherently suspect.
This upended the cart, tipping its passengers into the river, which at the time was swollen in flood.
