What is the meaning of Fluctuate?

To vary irregularly; to swing.

To undulate.

To be irresolute; to waver.

To cause to vary irregularly.

To rise and fall as a wave; to be tossed up and down the waves.

Tossed up and down the waves.

Wavering, fickle.

second-person plural present active imperative of flūctuō

second-person singular voseo imperative of fluctuar combined with te

Source: wiktionary.org