Meaning of “fluctuate” in the English Dictionary

"fluctuate" in British English

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fluctuateverb [ I ]

uk /ˈflʌk.tʃu.eɪt/ us /ˈflʌk.tʃu.eɪt/
fluctuation
noun [ C or U ] uk /ˌflʌk.tʃuˈeɪ.ʃən/ us /ˌflʌk.tʃuˈeɪ.ʃən/

fluctuations in share prices/the exchange rate/temperature

(Definition of “fluctuate” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"fluctuate" in American English

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fluctuateverb [ I ]

us /ˈflʌk·tʃuˌeɪt/

to change or vary frequently between one level or thing and another:

Vegetable prices fluctuate according to the season.
I fluctuate between feeling really happy and utterly miserable.
fluctuation
noun [ C/U ] us /ˌflʌk·tʃuˈeɪ·ʃən/

[ C ] fluctuations in temperature
[ U ] A certain amount of fluctuation in quality is unavoidable.

(Definition of “fluctuate” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"fluctuate" in Business English

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fluctuateverb [ I ]

uk /ˈflʌktʃueɪt/ us

if prices, levels, or interest rates fluctuate, they go up and down:

Inflation has fluctuated in recent months along with oil prices.
fluctuate between sth and sth Dividend yields typically fluctuate between 4 per cent and 6 per cent.
fluctuate with sth Over the past months, retail prices have fluctuated with market conditions.
prices/investments/profits fluctuate Traders on the New York Stock Exchange monitored their screens and took a wait-and-see approach as prices fluctuated.
fluctuate wildly/significantly/slightly Shares have been fluctuating wildly in a volatile market.
fluctuate from day to day/month to month/year to year Your cash flow fluctuates from year to year as your portfolio increases or decreases.

(Definition of “fluctuate” from the Cambridge Business English Dictionary © Cambridge University Press)