Oxford Dictionary English

fluctuate

verb
verb
BrE BrE//ˈflʌktʃueɪt//
; NAmE NAmE//ˈflʌktʃueɪt//
[intransitive]Verb Forms present simple I / you / we / they fluctuate
BrE BrE//ˈflʌktʃueɪt//
; NAmE NAmE//ˈflʌktʃueɪt//
 he / she / it fluctuates
BrE BrE//ˈflʌktʃueɪts//
; NAmE NAmE//ˈflʌktʃueɪts//
 past simple fluctuated
BrE BrE//ˈflʌktʃueɪtɪd//
; NAmE NAmE//ˈflʌktʃueɪtɪd//
 past participle fluctuated
BrE BrE//ˈflʌktʃueɪtɪd//
; NAmE NAmE//ˈflʌktʃueɪtɪd//
 -ing form fluctuating
BrE BrE//ˈflʌktʃueɪtɪŋ//
; NAmE NAmE//ˈflʌktʃueɪtɪŋ//
 Trends
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to change frequently in size, amount, quality, etc., especially from one extreme to another synonym vary fluctuating prices The documentary follows the fluctuating fortunes of one marketing company. fluctuate between A and B During the crisis, oil prices fluctuated between $20 and $40 a barrel. + adv./prep. Temperatures can fluctuate by as much as 10 degrees. My weight fluctuated wildly depending on how much I ate. My mood seems to fluctuate from day to day. The rate of inflation has been fluctuating around 4% for some time. Wordfindertrendboom, decline, dip, fluctuate, level off/​out, peak, plateau, plummet, slump, trend Oxford Collocations Dictionary adverbconsiderably, greatly, dramatically, … prepositionaccording to, around, between, … See full entry See related entries: Trends Word Originmid 17th cent. (earlier (late Middle English) as fluctuation): from Latin fluctuat- ‘undulated’, from the verb fluctuare, from fluctus ‘flow, current, wave’, from fluere ‘to flow’.Extra examples The number of boys at the school fluctuates around 100. The number of students fluctuates around 100. The number of unemployed fluctuates between two and three million. Traffic congestion fluctuates according to the time of day. constantly fluctuating patterns During the crisis, oil prices fluctuated between $30 and $50 a barrel.
See fluctuate in the Oxford Learner's Dictionary of Academic EnglishSee fluctuate in the Oxford Advanced American Dictionary
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