[lahyt-hous] 
[-hou-ziz] . | 1. | a tower or other structure displaying or flashing a very bright light for the guidance of ships in avoiding dangerous areas, in following certain routes, etc. |
| 2. | either of two cylindrical metal towers placed forward on the forecastle of the main deck of a sailing ship, to house the port and starboard running lights. |
| light·house (līt'hous') n. A tall structure topped by a powerful light used as a beacon or signal to aid marine navigation. |
zɪz