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English definition of “thorough”

thorough

adjective uk   /ˈθʌr.ə/ us    /ˈθɝː-/ /-oʊ/

thorough adjective (CAREFUL)

B2 detailed and careful: a thorough revision of the manuscript They did a thorough search of the area but found nothing.Detailed and careful

thorough adjective (COMPLETE)

complete, very great, or very much: It was a thorough waste of time.Very and extremeComplete and wholeIntensifying expressionsComplete and wholeVery and extreme
thoroughness
noun [U] uk   /-nəs/ us  
Detailed and careful
(Definition of thorough from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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