Definition of perjury noun from the Oxford Advanced Learner's Dictionary

 

perjury

 noun
noun
BrE BrE//ˈpɜːdʒəri//
 
; NAmE NAmE//ˈpɜːrdʒəri//
 
[uncountable](law) Types of crime
 
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the crime of telling a lie in court The defence witnesses were found guilty of perjury. to commit perjury See related entries: Types of crime Word Origin late Middle English: from Anglo-Norman French perjurie, from Latin perjurium ‘false oath’, from the verb perjurare ‘swear falsely’, from per- ‘to ill effect’ + jurare ‘swear’.
See the Oxford Advanced American Dictionary entry: perjury