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English definition of “reduction”

reduction

noun uk   /rɪˈdʌk.ʃən/ us  
B2 [C or U] the act of making something, or of something becoming, smaller in size, amount, degree, importance, etc.: a reduction in traffic huge price reductions [C] a copy of a photograph, picture, etc. that is smaller than the original one
(Definition of reduction from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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