[mass noun]the quality of being noble in character, mind, birth, or rank (品质、思想、出生或爵位的)高贵;高尚
(一般作 the nobility)the group of people belonging to the highest social class in a country; the aristocracy 贵族 a member of the English nobility. 英国贵族的一员。
语源
late Middle English: from Old French nobilite or Latin nobilitas, from nobilis 'noted, high-born' (see noble)