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: a structure (such as a tower) with a powerful light that gives a continuous or intermittent signal to navigators
: beacon sense 3
Recent Examples on the Web
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lighthouse.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1622, in the meaning defined at sense 1
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Resources for lighthouse
14 Dec 2018
Time Traveler for lighthouse
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More Definitions for lighthouse
: a tower with a powerful light that is built on or near the shore to guide ships away from danger
See the full definition for lighthouse in the English Language Learners Dictionary
: a tower that produces a powerful glow to guide sailors at night or in poor visibility
More from Merriam-Webster on lighthouse
Rhyming Dictionary: Words that rhyme with lighthouse
Spanish Central: Translation of lighthouse
Nglish: Translation of lighthouse for Spanish Speakers
Britannica English: Translation of lighthouse for Arabic Speakers
Britannica.com: Encyclopedia article about lighthouse
Comments on lighthouse
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a knickknack or trinket
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