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fluctuation

fluctuation

76 6.3
A change in level or amount that goes up and down over time
  • noun
  • /ˌflʌk.tʃuˈeɪ.ʃən/
translation icon : fluctuación
  • There has been a noticeable fluctuation in the stock market over the past few weeks.
  • price fluctuations
  • temperature fluctuations
  • exchange rate fluctuations

So I never had any form of significant fluctuation prior to this.

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Examples

  • Hence, expectations often drive exchange rates, causing the fluctuations in currency values to be large and rapid.

    Academic text (1999)
  • What we saw last week was a fluctuation in yields.

  • Could a quantum fluctuation change what time is?

  • There is currently a 1.4 G fluctuation.

  • And what he wanted to study was the fluctuations of bonds and stock prices.

  • In fact, India is far more exposed to oil market fluctuations than other major emerging economies.

    Academic text (2015)
  • Motion picture production rose and fell according to seasonal fluctuations, which heavily influenced the demand for labor.

    Academic text (2012)
  • Diversified agroecosystems have become more important for agriculture as climate fluctuations have increased.

    Academic text (2011)
  • The scientist noted a significant fluctuation in temperature throughout the experiment.

  • Farmers are concerned about the fluctuation in crop prices this season.

Synonyms

variation
vsfluctuation
113 3.0

A change in amount or condition from what is normal

focuses on repeated or ongoing unsteady change rather than single differences
volatility
vsfluctuation
  • Specialized
49 7.1

How likely a person, situation, or market is to change quickly and unexpectedly

covers change in general without implying speed or unpredictability
jitter
vsfluctuation
  • Specialized
46 7.5

Small quick changes in an electronic signal that cause problems

includes larger or slower shifts as well as tiny rapid ones
variability
vsfluctuation
29 5.7

The amount that something changes over time or between things

emphasizes the actual ups and downs rather than the general tendency to change
variance
vsfluctuation
18 5.5

A difference from what is usual or expected

refers to the ongoing moving up and down rather than a single difference
ripple
vsfluctuation
  • Specialized
7 6.9

A small repeated change in an electrical signal that makes noise

applies to broader rises and falls, not only tiny superimposed waves
oscillation
vsfluctuation
  • Specialized
6 7.0

One complete back-and-forth movement, like a pendulum swing

covers irregular or uneven changes as well as regular ones
perturbation
vsfluctuation
  • Specialized
4 8.8

A small change that makes a system behave differently

refers to ordinary rises and falls rather than external disruptive events
unsteadiness
vsfluctuation
1 5.1

A lack of balance or firm control that causes shaking

describes repeated changes in level rather than general weakness or instability
variableness
vsfluctuation
7.2

A quality of changing often, like rain or mood

highlights the active shifting up and down rather than the simple state

Antonyms

363 3.1

Being steady and not likely to change

constancy
  • Specialized
1 7.5

The way we see objects as the same even when light, distance, or position change

How Variable

volatility
  • Specialized
49 7.1
instability
114 5.1
fluctuation
76 6.3
oscillation
  • Specialized
9 7.2
variation
113 3.0
change
1.1

Surface Forms

fluctuation singular
fluctuations plural

Morphology

fluctuation = fluctuate (transparent) = fluctuate + ion

The noun is a regular deverbal nominalization of 'fluctuate' with meaning directly derived as 'the act or state of fluctuating'.

Etymology

Fluctuation comes from the Latin root flu-, from fluere, which means 'to flow', and it is the same root as the everyday word flow. So a fluctuation is a change that moves up and down like a small flow, which fits how we use it for amounts or levels that go up and down.