lighthouse

noun

light·​house ˈlīt-ˌhau̇s How to pronounce lighthouse (audio)
Synonyms of lighthousenext
1
: a structure (such as a tower) with a powerful light that gives a continuous or intermittent signal to navigators
2

Illustration of lighthouse

Illustration of lighthouse
  • lighthouse 1

Examples of lighthouse in a Sentence

Recent Examples on the Web
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Police said the child disappeared underwater just south of the lighthouse and did not resurface. Lauren Victory, CBS News, 23 June 2026 There is also a lighthouse that was constructed in 1885, three tourist cottages and one 20-bed tourist home, according to the Administration of UT of Lakshadweep. Lexi Lane, PEOPLE, 21 June 2026 From the nearby lighthouse, visitors craned for a better view of Swift’s mansion, a sprawling white home perched atop a rocky bluff overlooking the Atlantic Ocean. Leah Willingham, Fortune, 21 June 2026 Rumors take hold From the nearby lighthouse, visitors craned for a better view of Swift’s mansion, a sprawling white home perched atop a rocky bluff overlooking the Atlantic Ocean. Leah Willingham, Chicago Tribune, 21 June 2026 See All Example Sentences for lighthouse

Word History

First Known Use

1606, in the meaning defined at sense 1

Time Traveler
The first known use of lighthouse was in 1606

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Cite this Entry

“Lighthouse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lighthouse. Accessed 26 Jun. 2026.

Kids Definition

lighthouse

noun
light·​house -ˌhau̇s How to pronounce lighthouse (audio)
: a tower with a powerful light at the top that is built on or near the shore to guide sailors at night
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