wave

[1]	undulate , billow , move to and fro , flap , flutter , quiver , flip-flop , swing , sway , ripple , oscillate , zigzag , fluctuate , shake , wag , whiffle , wigwag , wiggle , waggle , brandish
[2]	signal , sign , indicate , signify , gesture , gesticulate
[3]	beckon
[4]	brandish , flourish
[5]	roll , undulate , flap
[6]	curl

[1]	moving ridge , swell , undulation , billow , sea , heave , roller , whitecap , white horse , ripple , wavelet , breaker , comber
[2]	surge , swell , welling up , ground swell , movement , flood , upsurge , uprising , current , tide
[3]	signal , undulation , sign , gesticulation , gesture
[4]	waving , wafture
[5]	undulation