Peer of the realm (legal term for members of the peerage with full rights)
Lord (general title for many peers, also used informally)
Representative peer (elected member of the Scottish [1707–1963] or Irish [1801–1922] peerage who sat in the UK House of Lords on behalf of their peerage group)
Hereditary peer (peerage title that is passed down through inheritance; coronet depends on rank)
Life peer (peerage title granted for lifetime service; and, the title cannot be inherited; wears a Baron’s coronet)
Titled but Below the Peerage
(honorary or hereditary titles that do not grant peerage status)
Baronet (hereditary title ranking below a baron, but above a knight)
Knight (non-hereditary honor awarded for service or merit)
Dame (female equivalent of a Knight, awarded for distinguished service)
Privilege of peerage (legal rights and privileges associated with being a peer, even if not sitting in Parliament)
Commoners and Gentry
(non-peerage ranks historically associated with privilege and status)
Courtesy title (honorific used by heirs of peers, not legally recognized)
Esquire (once a rank below knight, now an informal designation)
Gentleman (traditional term for men of status and refinement)
Baronage (collective term for barons, historically linked to landownership)
Laird (Scottish landowner, similar to an esquire or lord of the manor, but not a peer)
Scottish clan (traditional kinship-based groups in Scotland, some led by clan chiefs)
Scottish clan chief (leader of a Scottish clan, recognized under Scottish heraldic law)
Peerage of Ireland (Irish titles created before 1920; held seats in the Irish House of Lords until 1801, with some later sitting in the UK House of Lords)
Peerages in the United Kingdom (titles created since 1801 in the United Kingdom of Great Britain and Ireland – renamed the UK of Great Britain and Northern Ireland after 1921)