Fluctuate

Definition: Indicates that numbers or levels change continuously. 

Example: “The number of website visitors fluctuated throughout the year, reaching its peak in December.”

Vary

Definition: Refers to changes in numbers or levels. 

Example: “The temperature varied significantly throughout the month, with sharp increases and decreases.”

Waver

Definition: Shows instability in data. 

Example: “The company’s stock prices wavered over the course of the financial year, reflecting market volatility.”

Oscillate

Definition: Describes data moving back and forth within a range. 

Example: “The temperature oscillated between 20 and 25 degrees during the summer months.”