n. facility, skill, talent, adeptness, expertise, expertness, skilfulness, aptitude, capability, ability, dexterity, capability, competence or competency, ingenuity, knack, savoir faire, Colloq know-how The proficiency he displayed as a racing-car driver was second to none
PROFICIENCY
Meaning of PROFICIENCY in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012