English

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

 

proficiency

 noun
noun
BrE BrE//prəˈfɪʃnsi//
 
; NAmE NAmE//prəˈfɪʃnsi//
 
[uncountable]
 
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the ability to do something well because of training and practice to develop proficiency a certificate of language proficiency proficiency in something/in doing something a high level of oral proficiency in English