Lat In international law. Warlike uses or objects. It is the usus bcllici which determine an article to be contraband. 1 Kent, Comm. 141. Usus est dominium fiduciarium. Bac. St Uses. Use is a fiduciary dominion. Usus et status sive posscssio potius differunt secundum rationem fori, quam secundum rationem rei. Bac. St. Uses. Use and estate, or possession, differ more in the rule of the court thau iu the rule of the matter.