(1):

(n.) One who receives any endowment from an ancestor or relation; as, the heir of one's reputation or virtues.

(2):

(n.) One who inherits, or is entitled to succeed to the possession of, any property after the death of its owner; one on whom the law bestows the title or property of another at the death of the latter.

(3):

(v. t.) To inherit; to succeed to.