(in the Bible) the Hebrew patriarch from whom all Jews trace their descent (Gen. 11:27–25:10). In Gen. 22 he is ordered by God to sacrifice his son Isaac as a test of faith, a command later revoked.
Definition of Abraham in US English:
Abraham
proper nounˈeɪbrəˌhæmˈābrəˌham
(in the Bible) the Hebrew patriarch from whom all Jews trace their descent.