SEPTET Meaning of SEPTET in English [ sɛp'tɛt ](also ~te ) ■ noun a group of seven people playing music or singing together. ↘a composition for such a group.OriginC19: from Ger. Septett , from L. septem 'seven'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004