Dictionary.com

fluctuate

[ fluhk-choo-eyt ]
/ ˈflʌk tʃuˌeɪt /
Save This Word!
See synonyms for: fluctuate / fluctuated / fluctuating on Thesaurus.com

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.
QUIZ
CUDDLE UP! A COZY QUIZ ON FALL WORDS HAS ARRIVED
If autumn is your ideal season, spice up your repertoire of "fall" vocabulary with this quiz on some warm and vivid descriptive words for the season.
Question 1 of 10
Which of the following words means “to make a crackling sound; crackle”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

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. 2021

How to use fluctuate in a sentence

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
FEEDBACK