tumble
noun.
an acrobatic feat of rolling or turning end over end
noun.
a sudden drop from an upright position
he had a nasty spill on the ice
Synonym: fall, spill
verb.
fall down, as if collapsing
The tower of the World Trade Center tumbled after the plane hit it
Synonym: topple
verb.
cause to topple or tumble by pushing
Synonym: tip, topple
verb.
roll over and over, back and forth
verb.
fly around
The clothes tumbled in the dryer|rising smoke whirled in the air
Synonym: whirl, whirl around
verb.
fall apart
the building crumbled after the explosion|Negotiations broke down
Synonym: break down, collapse, crumble, crumple
verb.
throw together in a confused mass
They tumbled the teams with no apparent pattern
verb.
understand, usually after some initial difficulty
She didn't know what her classmates were plotting but finally caught on
Synonym: catch on, cotton on, get it, get onto, get wise, latch on, twig
verb.
fall suddenly and sharply
Prices tumbled after the devaluation of the currency
verb.
put clothes in a tumbling barrel, where they are whirled about in hot air, usually with the purpose of drying
Wash in warm water and tumble dry
verb.
suffer a sudden downfall, overthrow, or defeat
verb.
do gymnastics, roll and turn skillfully