fluctuated; fluctuating
Definition of fluctuate
1
: to shift back and forth uncertainly
Oil prices fluctuated. Temperatures fluctuated.
2
: to rise and fall in or as if in waves
The boat fluctuated on the rough sea.
: to cause to fluctuate
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Merriam-Webster unabridged
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Time Traveler for fluctuate
The first known use of fluctuate was in 1604
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