fluctuate

[ fluhk-choo-eyt ]
/ ˈflʌk tʃuˌeɪt /

verb (used without object), fluc·tu·at·ed, fluc·tu·at·ing.

to change continually; shift back and forth; vary irregularly: The price of gold fluctuated wildly last month.
to move back and forth in waves.

verb (used with object), fluc·tu·at·ed, fluc·tu·at·ing.

to cause to fluctuate.

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Origin of fluctuate

First recorded in 1625–35; from Latin fluctuātus “undulated,” past participle of fluctuāre “to flow,” equivalent to fluctu(s) “a flowing” (derivative of fluere “to flow”) + -ātus-ate1

synonym study for fluctuate

1. See waver1.

OTHER WORDS FROM fluctuate

non·fluc·tu·at·ing, adjectiveun·fluc·tu·at·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for fluctuate

British Dictionary definitions for fluctuate

fluctuate
/ (ˈflʌktjʊˌeɪt) /

verb

to change or cause to change position constantly; be or make unstable; waver or vary
(intr) to rise and fall like a wave; undulate

Word Origin for fluctuate

C17: from Latin fluctuāre, from fluctus a wave, from fluere to flow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012