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.
The rise of AI tools that instantly answer questions and complex problems could make humans less intelligent, the Royal Observatory Greenwich has warned.
From BBC • May 18, 2026
One of the most compelling arguments for why doing nothing works comes from a classic book written four decades ago by Charles Ellis, founder of the investment firm Greenwich Associates.
From MarketWatch • May 11, 2026
“The home has since nurtured three generations of artists, remaining a beloved gathering spot for Greenwich Village’s most celebrated creative minds,” the listing adds.
From MarketWatch • Apr. 14, 2026
Police raided the Stonewall Inn, a gay bar in Manhattan’s Greenwich village, in 1969, setting off what became known as the Stonewall Rebellion.
From The Wall Street Journal • Apr. 13, 2026
Pulcinella is sparklingly inventive with its source material but it is nevertheless the musical equivalent of placing the Art Deco spire of Manhattan's Chrysler Building on top of Christopher Wren's Greenwich Hospital.
From "The Story of Music" by Howard Goodall
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.