(1) Become turned or set on end
(2) Set, turn, or stand on end
(1) When trying to begin an experiment which involves cress seedlings, do not upend the seed packet and tip cress seeds all over the floor.
(2) Most recently, he teamed up with archaeologists near his Livingston, Montana, home to research a burial site that may upend theories of how humans arrived in America.
(3) I turned to fetch milk from the fridge and in the process managed to upend the iron, which promptly headed for the floor and landed with a crash, rendering it somewhat ‘dismantled’ and burning the floor just for good measure.
(4) Harris suggested that teachers should challenge students, upend their settled ideas, and expose them to worlds far beyond their own experiences.
(5) Open all the little bottles they give you and upend them in the water.
(6) So they upended the futon and assembled the bed in my bedroom.
(7) But it took the council a week to collect Mr Warner's bin, and he said that when the binmen did finally arrive they simply upended his green bin in to his black bin before taking it off to landfill.
(8) His ocean survival unit holds 12 people and has a curved underwater fibreglass section that should stop high waves and wind upending the craft, unlike traditional flat-bottomed inflatables.
(9) Mr Ebener, along with other horrified spectators, was stunned when Mr Gloystein upended the magnum bottle and proceeded to pour it all over the head of Mr Ottmann.
(10) This completely upends conventional wisdom about the war, and requires a certain amount of historical amnesia.
(11) Almost worse, he says, was the insult of troops upending ashtrays, of throwing his clothes on the floor and stepping on them, and of smashing open suitcases they could easily have opened.
(12) Frozen disks of meat were dropped onto one rotating chain; upended buns onto another.
(13) He had upended the bottle when he slammed the door.
(14) I upended the pumpkin and cut the bottom out of it, then put it outside on our backdeck, over the decklight, sparing us the need to use a candle or a flashlight to light him up.
overturn
invert
turn over
turn upside down
capsize
flip
tip
keel over
turn turtle
trip
take the legs out from under