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Definition of lighthouse noun from the Oxford Advanced Learner's Dictionary

lighthouse

noun
 
/ˈlaɪthaʊs/
 
/ˈlaɪthaʊs/
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  1. a tower or other building that contains a strong light to warn and guide ships near the coastTopics Transport by waterc1, Buildingsc1
See lighthouse in the Oxford Advanced American Dictionary

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alloy
noun
 
 
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Physics and chemistry
C2
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