as in world
a huge physical or conceptual distance
my sister and I are close in age, but personality-wise, there are light-years between us
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Recent Examples of light-year
The Milky Way is our home galaxy with a disc of stars that spans more than 100,000 light-years.
—
Eric Lagatta, USA Today, 23 May 2025
Gamma Cephei is actually two stars, a binary star system located some 45 light-years from Earth in the constellation Cepheus.
—Anthony Wood, Space.com, 20 May 2025
The spiral galaxy is home to Earth and hundreds of billions of stars spanning more than 100,000 light-years, NASA said.
—Hannah Poukish, Sacbee.com, 19 May 2025
Spica is actually a double star system around 250 light-years, or a little over 1,400 trillion miles, away from Earth.
—Mike Lynch, Twin Cities, 18 May 2025
See All Example Sentences for light-year
Eric Lagatta, USA Today, 23 May 2025
Gamma Cephei is actually two stars, a binary star system located some 45 light-years from Earth in the constellation Cepheus.
—Anthony Wood, Space.com, 20 May 2025
The spiral galaxy is home to Earth and hundreds of billions of stars spanning more than 100,000 light-years, NASA said.
—Hannah Poukish, Sacbee.com, 19 May 2025
Spica is actually a double star system around 250 light-years, or a little over 1,400 trillion miles, away from Earth.
—Mike Lynch, Twin Cities, 18 May 2025
See All Example Sentences for light-year
Recent Examples of Synonyms for light-year
Noun
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Totem Films holds world sales rights to the film, which is directed by Lithuania’s Vytautas Katkus.—
Leo Barraclough,
Variety,
3 June 2025
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Highlights of the Sotheby’s sale completed a world tour and will be shown next at Sotheby’s New York headquarters from June 6 – 12.—
Anthony DeMarco,
Forbes.com,
3 June 2025
Noun
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Here's what to know about how the powerful forces may have shaped galaxies and how the discovery may help astronomers better study black holes.—
Eric Lagatta,
USA Today,
6 June 2025
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However, this design allows for more light transfer through the lens, helping keen astronomers to see distant planets and galaxies.—
Matt Morris,
Space.com,
6 June 2025
Cite this Entry
“Light-year.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/light-year. Accessed 10 Jun. 2025.
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