light-years

Definition of light-yearsnext
plural of light-year
as in worlds
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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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of light-years Space is the massive, ever-expanding realm beyond Earth’s atmosphere, spanning more than 93 billion light-years in the observable universe. Georgina Jedikovska, Interesting Engineering, 27 Apr. 2026 The Trifid Nebula is a bright, colorful cloud of gas and dust about 5,000 light-years from Earth in the constellation Sagittarius, according to NASA. Eric Lagatta, USA Today, 27 Apr. 2026 Such visions pull our minds into journeys of light-years and thoughts far beyond or grounded world. Ernie Cowan, San Diego Union-Tribune, 26 Apr. 2026 The jet bursts out through the clouds of the nebula and extends light-years into space. Keith Cooper, Space.com, 24 Apr. 2026 Remember, stellar distances are measured in light-years, with the closest star system still over four light-years away. Big Think, 22 Apr. 2026 Located 7,200 light-years away, Cygnus X-1 features not only a black hole — the first one ever identified more than a half-century ago — but a blue supergiant star, its constant companion. Marcia Dunn, Los Angeles Times, 20 Apr. 2026 Polaris is perched 433 light-years, or just over 2500 trillion miles, above the North Pole. Mike Lynch, Twin Cities, 19 Apr. 2026
Recent Examples of Synonyms for light-years
Noun
  • When their fort reveals a magical ability to transport them to worlds across the globe, the girls embark on a whirlwind adventure that brings them closer again.
    Matt Grobar, Deadline, 30 Apr. 2026
  • The two companies are working on an entertainment platform that will be connected to Fortnite and be filled with the company’s characters and worlds.
    Alex Weprin, HollywoodReporter, 30 Apr. 2026
Noun
  • Scientists can draw on it to identify and study 100,000 exoplanets, hundreds of millions of galaxies, billions of stars, and rare objects and phenomena — including some that astronomers have never witnessed before.
    Richard Tribou, The Orlando Sentinel, 1 May 2026
  • At distances of billions of light-years, this corresponds to recession speeds that approach the speed of light, and for the most distant galaxies of all, like MoM-z14, speeds that even exceed it.
    Big Think, Big Think, 1 May 2026

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Cite this Entry

“Light-years.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/light-years. Accessed 3 May. 2026.

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