To be the elements or parts of; compose: Copper and tin constitute bronze. To amount to; equal:"Rabies is transmitted through a bite;. . patting a rabid animal in itself does not constitute exposure"(Malcolm W. Browne). To set up or establish according to law or provision: a body that is duly constituted under the charter. To found (an institution, for example). To enact (a law or regulation). To appoint to an office, dignity, function, or task; designate.