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English definition of “diligent”

diligent

adjective uk   /ˈdɪl.ɪ.dʒənt/ us  
approving careful and using a lot of effort: a diligent student Leo is very diligent in/about his work. Their lawyer was extremely diligent in preparing their case. done in a careful and detailed way: The discovery was made after years of diligent research.
diligence
noun [U] uk   /-dʒəns/ us  
She hoped that her diligence would be noticed at work.
diligently
adverb uk   /-li/ us  
(Definition of diligent from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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