If someone has a peerage, they have the rank of a peer.
例句
The Prime Minister offered him a peerage...首相授予他贵族爵位。It's thought she may eventually accept a peerage and move to the House of Lords.人们认为她最终可能接受贵族头衔,进入上议院。
N-SING
(泛指一国的)贵族
The peers of a particular country are referred to as the peerage.