Synonyms of light-year

light-year

noun

ˈlīt-ˌyir 

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

• world
• galaxy
• way
• long haul
• infinity
• country mile

Antonyms & Near Antonyms

• striking distance
• shouting distance
• inch
• hairbreadth
• hair
• hop, skip, and jump
• stone's throw

Example Sentences

Recent Examples of light-year

Sign Up for Our Free Daily Newsletter Imagine a lion with the nose of a dying star, a mane of space dust and a habitat 10,000 light-years away from Earth. — Mary Randolph, Scientific American, 12 Aug. 2026

But, as with any franchise, some of these iterations are light-years better than others. — Chris Snellgrove, Entertainment Weekly, 7 Aug. 2026

Other star systems lie thousands and billions of light-years away, meaning that traveling the trans-Earth distance could take almost as long as the age of the universe itself. — Jeffrey Kluger, Time, 6 Aug. 2026

But thanks to quick coordination efforts around the world, an international research team recently spotted a star’s shock breakout about 500 million light-years from Earth. — Andrew Paul, Popular Science, 5 Aug. 2026