Signal

Anything by means of which communications such as warnings, orders, etc. are conveyed to a greater or le distance; for instance; from one ve el to another at sea; from a ship to the shore or vice-vers a; whether by a flag, or a combination of flags; gunfire, rockets, lights, etc., as for uDay-signals,” by flags or balls; for „Night signals ”, by lanterns, rockets, etc.; „ Fog-signals ”, by a bell or horn.