come upon
— Verb
– English
～ take possession of; "She entered upon the estate of her rich relatives"
chance upon
— Verb
– English
～ find unexpectedly; "the archeologists chanced upon an old tomb"; "she struck a goldmine"; "The hikers finally struck the main path to the lake"
come upon
— Verb
– English
～ find unexpectedly; "the archeologists chanced upon an old tomb"; "she struck a goldmine"; "The hikers finally struck the main path to the lake"
contingent upon
— Adjective
– English
～ being determined by conditions or circumstances that follow; "arms sales contingent on the approval of congress"
coming upon
— Noun
– English
～ a casual meeting with a person or thing