fluctuation
noun
[ ˌflʌktʃʊˈeɪʃ(ə)n ]
• an irregular rising and falling in number or amount; a variation.
• "fluctuations in the yearly values could be caused by a variety of factors"
Similar:
variation,
shift,
change,
alteration,
swing,
movement,
oscillation,
undulation,
alternation,
rise and fall,
rising and falling,
see-sawing,
yo-yoing,
instability,
unsteadiness,
