Definition of light-yearnext
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

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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-year The park feels light-years away from the closest major airport, Midland (235 miles away), and this seclusion ensures the park’s night views stay dazzling. Stephanie Vermillion, Travel + Leisure, 23 Aug. 2026 Millions of light-years away, but because of that black thing Brit had come riding up the hill at dusk. Literary Hub, 19 Aug. 2026 The enormous columns of gas and dust sit inside the Eagle Nebula, about 6,500 light-years away, and stretch roughly five light-years. Kaif Shaikh, Interesting Engineering, 15 Aug. 2026 The celestial phenomenon, located in a galaxy roughly 115 million light-years from Earth, is the remnant of a dense ball of stars being slowly pulled apart by the gravity of its host galaxy. Taylor Nicioli, CNN Money, 13 Aug. 2026 See All Example Sentences for light-year
Recent Examples of Synonyms for light-year
Noun
  • Sagittarius November 22 – December 21 A bigger world is calling, but the unread messages aren’t going anywhere.
    Tarot.com, Baltimore Sun, 7 Sep. 2026
  • In 2025, World Tennis, the sport’s world governing body, changed the rules, allowing it essentially everywhere.
    Matthew Futterman, New York Times, 6 Sep. 2026
Noun
  • These three mysterious elements of the cosmos have played a vital role in the evolution of large-scale cosmic structures like galaxies and galaxy clusters.
    Robert Lea, Space.com, 10 Sep. 2026
  • In real terms, that means shorter exposure times to pull a clean image out of a faint galaxy or nebula and fewer hours standing in the cold waiting for enough photons to hit the sensor.
    New Atlas, New Atlas, 9 Sep. 2026

Browse Nearby Words

Cite this Entry

“Light-year.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/light-year. Accessed 10 Sep. 2026.

More from Merriam-Webster on light-year

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster