fluctuate

v. vacillate, waver, vary, change

In physics, a fluctuation is a variation in an extensive or intensive quantity, such as energy, density or voltage, from its spatial or temporal average. The mean-square fluctuation is equivalent to the variance in statistics. If is the ith data point of X, the mean-square fluctuation is calculated asIn thermodynamics, a fluctuation is a perturbation in an equilibrium or far-from-equilibrium thermodynamic system.In economics, fluctuation is a critical combination of events.In Medicine, fluctuation (medicine) is a palpable characteristic of e.g. a neoplasm, depending on the content of fluid.In Music, fluctuations (music) is an Avant-Garde artist from England that focuses on drones and loops as well as field recordings as a basis for creating soundscapes.
See more at Wikipedia.org...

Verb
1. cause to fluctuate or move in a wave-like pattern
(hypernym) move, displace
(verb-group) vacillate, waver
(derivation) fluctuation
2. move or sway in a rising and falling or wavelike pattern; "the line on the monitor vacillated"
(synonym) vacillate, waver
(hypernym) swing
(derivation) fluctuation
3. be unstable; have ups and downs; "The stock market fluctuates"
(hypernym) change state, turn
(derivation) fluctuation, wavering

= ebb and flow, fluctuate, vacillate, oscillate.
Ex: The importance of the practicum in the curriculum has ebbed and flowed tremendously throughout the history of library education.
Ex: The exchange rate is likely to fluctuate in unpredictable ways.
Ex: Australia's treatment of information technology has vacillated between laissez faire and an interventionist strategy.
Ex: This dichotomy in Muslim history, which has oscillated between periods of piousness & decadence, demonstrates further disunity in the Muslim world.

n. v.
1. wave
لہرانا, ڈولنا, ہلکورنا, جھومنا, موج مارنا, جھولنا, گھٹنا بڑھنا
2. be wavering or unsteady
بے ٹھور ٹھکانے ہونا, بے ثبات ہونا, بے قيام ہونا, ناپائيدار ہونا, ڈانواں ڈول ہونا