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English definition of “plateau”

plateau

noun [C] (NO CHANGE)    /ˈplæt.əʊ/ US  /plætˈoʊ/ (plural UK plateaux   /-z/   or US also plateaus)
a period during which there are no large changes : The US death rate reached a plateau in the 1960s, before declining suddenly .Pauses and interludes
(Definition of plateau noun (NO CHANGE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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