intransitive verb. To vary irregularly, especially in amount.

To have a wave-like motion; rise and fall in level or degree; undulate; waver.

To move or pass backward and forward as if on waves; be wavering or unsteady; rise and fall; change about: as, public opinion often fluctuates; the funds or the prices of stocks fluctuate.

Synonyms Fluctuate, Vacillate, Waver, Oscillate, Undulate, apply to literal or figurative movements to and fro, or up and down; but undulate is used only physically, as of the sea, sound-waves, etc. Fluctuate, waver, and undulate in their figurative uses are founded upon the rise and fall of waves; oscillate refers to the swinging of a pendulum. Vacillate, and next to it waver, suggests the most of mental or moral indecision. Oscillate naturally suggests the most regular alternations of movement to and fro. Vacillate and waver are now rarely used of physical things; waver is also used of a hesitation that seems likely to end in yielding.

To put into a state of fluctuating or wave-like motion.

To cause to waver or be undecided.

transitive verb. To cause to move as a wave; to put in motion.

intransitive verb. To move as a wave; to roll hither and thither; to wave; to float backward and forward, as on waves.

intransitive verb. To move now in one direction and now in another; to be wavering or unsteady; to be irresolute or undetermined; to vacillate.

verb. To vary irregularly; to swing.

verb. To undulate.

verb. To cause to vary irregularly.

verb. cause to fluctuate or move in a wavelike pattern

verb. be unstable

verb. move or sway in a rising and falling or wavelike pattern

"Payments in dollar terms fluctuate with currency markets."

change state  displace  move  swing  turn  

alternate  back and fill  bob  bobble  careen  

fluctuated  fluctuates  fluctuating