A tall construction topped by a robust light utilized as a beacon or sign to aid marine navigation.
A building, usually a tower, containing a light to alert or guide ships.
A tower or other building with a robust light at top, erected during the entry of a port, or at some important point on a coast, to act as helpful tips to mariners through the night; a pharos.
A tower or other structure exhibiting a light or lights, for the intended purpose of showing the presence of stones, shoals, or other risks to navigation, or for the guidance of mariners when nearing or sailing along a coast, entering a harbor, or navigating a river or other human anatomy of liquid.
a tower with a light that provides caution of shoals to moving ships