A nobleman; a member of one of the five degrees of the British nobility, namely, duke, marquis, earl, viscount, baron; as, a peer of the realm.

A nobleman that is a duke, marquis, earl, viscount, or baron, all such titles being hereditary and entitling the owner to a seat in the House of Lords.

Generally a class-descriptive term applied to those of baronialHouse of Lords. Over time, the word has come to describe the members of the ‘greater nobility' who ruled over the general knightly classes.

a member of the nobility, especially in Britain; an equal, as in being tried by a jury of one's peers.

a nobleman (duke or marquis or earl or viscount or baron) who is a member of the British peerage

a nobleman with a hereditary seat in the House of Lords: duke, marquess, earl, viscount, or baron.

abbreviation of Peer of the Realm. Indicates the aristocrats (and today the government appointees) who sit in the House of Lords. Until the law was reformed, every aristocrat had the right to be tried by his peers (i.e., in the House of Lords), rather than in a common court.

1) in Great Britain, a duke, marquess, earl, viscount or baron; noblemen having certain hereditary rights and prerogatives, such as a seat in the House of Lords. 2) in common usage in certain countries outside the U.K., a titled nobleman.