What is the meaning of tumbling?

noun

• The gymnastic moves of an acrobat.
  • synonyms: acrobatics

verb

• Fall down, as if collapsing.
  • usage: "The tower of the World Trade Center tumbled after the plane hit it"
  • synonyms: tumble, topple
• Cause to topple or tumble by pushing.
  • synonyms: topple, tumble, tip
• Roll over and over, back and forth.
  • synonyms: tumble
• Fly around.
  • usage: "The clothes tumbled in the dryer"; "rising smoke whirled in the air"
  • synonyms: whirl, tumble, whirl around
• Fall apart.
  • usage: "the building crumbled after the explosion"; "Negotiations broke down"
  • synonyms: crumble, crumple, tumble, break down, collapse
• Throw together in a confused mass.
  • usage: "They tumbled the teams with no apparent pattern"
  • synonyms: tumble
• Understand, usually after some initial difficulty.
  • usage: "She didn't know what her classmates were plotting but finally caught on"
  • synonyms: catch on, get wise, get onto, tumble, latch on, cotton on, twig, get it
• Fall suddenly and sharply.
  • usage: "Prices tumbled after the devaluation of the currency"
  • synonyms: tumble
• Put clothes in a tumbling barrel, where they are whirled about in hot air, usually with the purpose of drying.
  • usage: "Wash in warm water and tumble dry"
  • synonyms: tumble
• Suffer a sudden downfall, overthrow, or defeat.
  • synonyms: tumble
• Do gymnastics, roll and turn skillfully.
  • synonyms: tumble