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English definition of “blur”

blur

noun [U]    /blɜr/
something whose shape is not clear A blur is also something that you cannot remember clearly: It all happened so long ago that it’s just a blur to me now. blurry    /ˈblɜr·i, ˈblʌr·i/ adjective The exhibit consisted of blurry, blown-up, black-and-white photographs.
(Definition of blur noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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