(1):
(v. t.) To cast or throw; - with on.
(2):
(v. t.) To throw in; to dart in; to force in; as, to inject cold water into a condenser; to inject a medicinal liquid into a cavity of the body; to inject morphine with a hypodermic syringe.
(3):
(v. t.) Fig.: To throw; to offer; to propose; to instill.
(4):
(v. t.) To fill (a vessel, cavity, or tissue) with a fluid or other substance; as, to inject the blood vessels.