noun
lighthouse
LYT-hows
noun
1
A tower with a powerful light at the top, built to warn or guide ships near dangerous coastlines.
"The lighthouse beam swept across the bay every ten seconds."
"Sailors relied on the lighthouse to avoid the rocks."
How to Use Lighthouse
Learner’s notesIn plain EnglishA tall tower with a bright light that warns ships of danger near the coast.
Common pairings
lighthouse keeper
the lighthouse beam
Word Forms
lighthouses plural
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The _____ beam swept across the bay every ten seconds.
Etymology
A transparent compound of light + house, naming a structure built to house a warning light.