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English definition of “testify”


verb [I or T] uk   /ˈtes.tɪ.faɪ/ us  
C2 to speak seriously about something, especially in a law court, or to give or provide proof: [+ that] He testified that he had seen the man leaving the building around the time of the murder.Court cases, orders and decisions
(Definition of testify from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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