flutter

[1]	flap , flop , fluctuate , vacillate , wave , waver , oscillate
[2]	flit , flicker , flitter , hover , dance , fuss
[3]	tremble , shake , quiver , dither , jump , vibrate , twitch
[4]	flit , fleet , dart
[5]	flicker , waver , flitter , quiver
[6]	palpitate
[7]	bat

[1]	waver , flicker
[2]	disturbance , disruption , commotion , hurly burly , to-do , hoo-ha , hoo-hah , kerfuffle
[3]	flap , fluttering , flapping , flapping , fluttering , flopping , fluctuation , fluctuating , vacillation , vacillating , wave , waving , oscillation , oscillating , trembling , quiver , quivering