peer of the realm noun

A noble entitled to a seat in the House of Lords

peer pressure noun

Compulsion towards doing or obtaining the same things as others in one's peer group

peer review noun

An assessment of a piece of scientific or academic work by experts in the field

peer-to-peerˈ adjective (computing)

Denoting a system in which the workload of a network is evenly distributed among the workstations (abbrev P2P)

House of Peers

The House of Lords

life peer or peeress

A person invested with a non-hereditary peerage, entitling them to the title of baron or baroness and a seat in the House of Lords

spiritual peer

A bishop or archbishop qualified to sit in the House of Lords, as opposed to a temporal peer any other member