Definition of "Relative" :

noun: an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)

noun: a person related by blood or marriage

"Police are searching for relatives of the deceased."

adjective: estimated by comparison; not absolute or complete

"A relative stranger."

adjective: properly related in size or degree or other measurable characteristics; usually followed by to'

"Earnings relative to production."