Greenwich
Americannoun
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a borough in SE London, England: located on the prime meridian from which geographic longitude is measured; formerly the site of the Royal Greenwich Observatory.
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a town in SW Connecticut.
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Informal. Greenwich Time.
noun
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The prime meridian, which is the meridian designated zero degrees longitude, runs through Greenwich; Greenwich Mean Time is the mean (usual) time in Greenwich. All other time is measured in relation to it.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Melvin West, 70, sliced the map from a 1684 atlas by Dutch cartographer Frederik de Wit while viewing it at the Caird Library, part of the National Maritime Museum in Greenwich, in February 2025.
From BBC ● Oct. 22, 2026
"It would be typically about 3 a.m. for me because the space station runs on Greenwich Mean Time," Thomas said.
From Science Daily ● Oct. 21, 2026
WSJ’s Annie Linskey: Greenwich, Conn., is a town that has been shorthand in political circles for one word: fundraising.
From The Wall Street Journal ● Oct. 20, 2026
Musician and actor Steven Van Zandt is ready to part with his Greenwich Village penthouse, hiking the price up to a cool $18,995,000 after initially listing it for $15 million in June of this year.
From MarketWatch ● Oct. 14, 2026
The date line was Greenwich, Connecticut, and it stated that two children of Mr. and Mrs. Steven C. Kincaid, Sr. had been missing since Wednesday.
From "From the Mixed-Up Files of Mrs. Basil E. Frankweiler" by E.L. Konigsburg
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