Hey dumbass:
"A person who has equal standing with another or others, as in rank, class, or age."
All the words
www.wordnik.com
": one that is of equal standing with another : EQUAL
The band mates welcomed the new member as a peer.
especially
: one belonging to the same societal group especially based on age, grade, or status"
one that is of equal standing with another : equal; especially : one belonging to the same societal group especially based on age, grade, or status; a member of one of the five ranks (duke, marquess, earl, viscount, or baron) of the British peerage; noble… See the full definition
www.merriam-webster.com
Learn English or climb back under some Mideastern rock.