SESTET Meaning of SESTET in English [ sɛs'tɛt ]■ noun1》 Prosody the last six lines of a sonnet. 2》 Music, rare a sextet.OriginC19: from Ital. ~to , from sesto , from L. sextus 'a sixth'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004