Literally: Predominant. Force. Power or authority. Lordship. Dominion. Jurisdiction. Empire. A proof, evidence, argument. A basis. A reason. A right. A claim. A convincing miracle. Sovereign. Ruler. One who possesses the sovereignty. The Ruler of Muslims. Khalîfah.
Allah (Jalla Jalâluhû), the past and future sovereign of all ‘âlams.