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English definition of “trading”

trading

noun [U] uk   /ˈtreɪ.dɪŋ/ us  
the activity of buying and selling goods and/or services: She doesn't approve of Sunday trading (= shops being open on Sunday). the buying and selling of shares and money: The stock market moved ahead slightly in active trading today.
(Definition of trading from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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