PRIMO Meaning of PRIMO in English [ 'pri:məʊ ]■ noun ( plural ~s ) Music the leading or upper part in a duet. ■ adjective N. Amer. informal of top quality or importance.OriginC18: Ital., lit. 'first'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004