Meanings
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1
noun
a fast, powerful warship designed for independent or fleet operations
The cruiser escorted the convoy through contested waters.
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2
noun
a motorboat equipped for comfortable travel or living aboard
They spent the summer exploring the coast in a small cabin cruiser.
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3
noun
a police car used for patrol duties
A police cruiser stopped beside the damaged vehicle.
Thesaurus
Etymology
Formed from cruise + -er, literally something that cruises. Naval use first named a vessel sent to range independently; the term later extended to comfortable motorboats, patrol cars, and other vehicles designed for sustained travel.