Right of PASSAGE, in commerce, is an imposition or duty exacted by some princes, either by land or sea, in certain close and narrow places in their territories, on all vessels and carriages, and even sometimes on persons or passengers coming in or going out of ports, &c. The most celebrated passage of this kind in Europe is the Sound; the dues for passing which strait belong to the king of Denmark, and are paid at Elfenore or Cronenburg.