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

This material is then channeled to the poles of black holes, from where it is blasted out as near-light-speed jets that can extend for thousands of light-years. — Robert Lea, Space.com, 24 Sep. 2026

These candidates include TRAPPIST-1e, a planet located about 40 light-years from Earth widely regarded as one of the most promising locations for alien life. — Andrew Paul, Popular Science, 23 Sep. 2026

Others are top-of-the-line machines, pointed at distant galaxies millions of light-years away. — Sean MacAday, Sacbee.com, 19 Sep. 2026

The tiny particle originated in an enormous gamma-ray burst two billion light-years away from Earth. — Adam Kovac, Scientific American, 8 Sep. 2026