PIANO NOBILE Meaning of PIANO NOBILE in English [ ˌpjα:nəʊ'nəʊbɪleɪ ]■ noun Architecture the main storey of a large house, usually the first floor.OriginItal., lit. 'noble floor'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004