Illustration of lighthouse
- lighthouse 1
lighthouse
noun
light·house
ˈlīt-ˌhau̇s 
1
: a structure (such as a tower) with a powerful light that gives a continuous or intermittent signal to navigators
2
Examples of lighthouse in a Sentence
Recent Examples on the Web
Visitors like to explore the island’s caves and grottos, as well as a fortress tower and lighthouse at Cape Punta de Anciola.
—
Kristine Hansen, Travel + Leisure, 21 Dec. 2025
Like a lighthouse, this parenting style provides a stable source of guidance without being over-involved, as seen with helicopter parenting, or too hands-off, like with free-range parenting.
—Alex Vance, Parents, 21 Dec. 2025
The planet, designated PSR J2322-2650b, has a mass around that of Jupiter and orbits a dead star called a pulsar that blasts out twin jets of radiation that sweep across the universe like a cosmic lighthouse.
—Robert Lea, Space.com, 16 Dec. 2025
Other offices in the building included the Internal Revenue Service; the Bureau of Animal Industry; lighthouse, locomotive and steamboat inspections; and even a department for oleomargarine, to protect the dairy industry from being undercut by the cheaper butter substitute.
—John Diedrich, jsonline.com, 11 Dec. 2025
See All Example Sentences for lighthouse
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Kristine Hansen, Travel + Leisure, 21 Dec. 2025
Like a lighthouse, this parenting style provides a stable source of guidance without being over-involved, as seen with helicopter parenting, or too hands-off, like with free-range parenting.
—Alex Vance, Parents, 21 Dec. 2025
The planet, designated PSR J2322-2650b, has a mass around that of Jupiter and orbits a dead star called a pulsar that blasts out twin jets of radiation that sweep across the universe like a cosmic lighthouse.
—Robert Lea, Space.com, 16 Dec. 2025
Other offices in the building included the Internal Revenue Service; the Bureau of Animal Industry; lighthouse, locomotive and steamboat inspections; and even a department for oleomargarine, to protect the dairy industry from being undercut by the cheaper butter substitute.
—John Diedrich, jsonline.com, 11 Dec. 2025
See All Example Sentences for lighthouse
Cite this Entry
“Lighthouse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lighthouse. Accessed 27 Dec. 2025.
Copy CitationKids Definition
lighthouse
noun
light·house
-ˌhau̇s
: 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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