If someone has a peerage, they have the rank of a peer.
例句
The Prime Minister offered him a peerage...首相授予他貴族爵位。It's thought she may eventually accept a peerage and move to the House of Lords.人們認為她最終可能接受貴族頭銜，進入上議院。
N-SING
（泛指一國的）貴族
The peers of a particular country are referred to as the peerage.
英漢詞典釋義
n.
(統稱)貴族
She believes that hereditary peerages should be abolished.她認為世襲貴族應當被廢除。
貴族的爵位
She has confirmed that she will accept the honour of a peerage.她已經證實自己將接受貴族封號。