1N-SING-COLL [with singular or plural verb]贵族(阶层)The nobility of a society are all the people who have titles and belong to a high social class. 贵族(阶层)
They married into the nobility and entered the highest ranks of state administration.
他们同贵族阶层联姻,进入了国家最高行政层。
Despite its lack of formal power the nobility was not powerless.