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English definition of “thorough”

thorough

adjective  /ˈθɜr·oʊ, ˈθʌr-/ us  

thorough adjective (COMPLETE)

with nothing left out or omitted; complete: The district attorney’s office conducted a thorough investigation. The doctor gave him a thorough medical examination.

thorough adjective (VERY GREAT)

[not gradable] (used for emphasis) very great: The meeting was a thorough waste of time.
(Definition of thorough from the Cambridge Academic Content Dictionary © Cambridge University Press)
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