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lighthouse

[lahyt-hous] /ˈlaɪtˌhaʊs/
noun, plural lighthouses
[lahyt-hou-ziz] /ˈlaɪtˌhaʊ zɪz/ (Show IPA)
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.
Origin
1655-1665
1655-65; light1 + house
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for lighthouses

lighthouse

/ˈlaɪtˌhaʊs/
noun
1.
a fixed structure in the form of a tower equipped with a light visible to mariners for warning them of obstructions, for marking harbour entrances, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for lighthouses

lighthouse

n.

1620s, from light (n.) + house (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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