tumble (n.)
- blunder
 - blur
 - bow
 - breakdown
 - bulldog
 - careen
 - career
 - clutter
 - collapse
 - comedown
 - crash
 - cropper
 - deck
 - deflation
 - dig
 - dive
 - down
 - downfall
 - drop
 - dump
 - encounter
 - fall
 - falter
 - farrago
 - fell
 - fidget
 - floor
 - flop
 - flounce
 - flounder
 - flutter
 - fumble
 - glow
 - ground
 - hash
 - header
 - heave
 - hobbyhorse
 - hodgepodge
 - jerk
 - jumble
 - labor
 - level
 - list
 - litter
 - lose
 - lurch
 - mash
 - mess
 - mishmash
 - mix
 - muddle
 - pant
 - pi
 - pitch
 - plunge
 - pound
 - pratfall
 - precipitate
 - quake
 - quaver
 - quiver
 - rase
 - raze
 - rear
 - reel
 - riffle
 - rock
 - roll
 - rummage
 - scramble
 - shake
 - shiver
 - shuffle
 - slip
 - slump
 - smash
 - snafu
 - spill
 - sprawl
 - squirm
 - stagger
 - struggle
 - stumble
 - sway
 - swell
 - swing
 - tailspin
 - thrill
 - throb
 - throw
 - tilt
 - tingle
 - topple
 - topsy-turvydom
 - toss
 - totter
 - tremble
 - trip
 - turmoil
 - twitch
 - upset
 - wallop
 - wallow
 - welter
 - wiggle
 - wriggle
 - yaw
 
tumble (v.)
- apprehend
 - blunder
 - blur
 - bow
 - bulldog
 - capsize
 - careen
 - career
 - clutter
 - collapse
 - comprehend
 - confound
 - confuse
 - crash
 - crumble
 - deck
 - descend
 - dig
 - disintegrate
 - dive
 - down
 - drop
 - dump
 - encounter
 - fall
 - falter
 - fell
 - fidget
 - floor
 - flop
 - flounce
 - flounder
 - flutter
 - fumble
 - garble
 - glow
 - ground
 - grovel
 - hash
 - heave
 - jerk
 - jumble
 - labor
 - level
 - list
 - litter
 - lose
 - lurch
 - mash
 - mess
 - mix
 - muddle
 - palpitate
 - pant
 - perceive
 - pitch
 - plunge
 - pound
 - precipitate
 - prostrate
 - quake
 - quaver
 - quiver
 - rase
 - raze
 - rear
 - reel
 - riffle
 - rock
 - roll
 - rummage
 - scend
 - scramble
 - seethe
 - shake
 - shiver
 - shuffle
 - slip
 - slump
 - smash
 - snafu
 - spill
 - sprawl
 - spread-eagle
 - squirm
 - stagger
 - struggle
 - stumble
 - succumb
 - supinate
 - sway
 - swell
 - swing
 - thrill
 - throb
 - throw
 - tilt
 - tingle
 - topple
 - toss
 - totter
 - tremble
 - trip
 - twitch
 - understand
 - upset
 - wallop
 - wallow
 - welter
 - wiggle
 - wriggle
 - writhe
 - yaw
 
tumble (adj.)
Another tumble! That's his precious nose!
Lives like a drunken sailor on a mast,
Ready with every nod to tumble down.