WordNet (r) 3.0 (2006):
come upon v 1: find unexpectedly; "the archeologists chanced upon an old tomb"; "she struck a goldmine"; "The hikers finally struck the main path to the lake" [syn: fall upon, strike, come upon, light upon, chance upon, come across, chance on, happen upon, attain, discover] 2: take possession of; "She entered upon the estate of her rich relatives" [syn: enter upon, come upon, luck into]