Light year synonyms
A unit of astronomical length equal to 3.26 light-years. It is based on the distance from Earth at which a star would have a parallax of one second of arc. Its metric equivalent is about 30.8 trillion km (19.1 trillion mi). It is used in measuring distances in interstellar and intergalactic space. The closest star to Earth, Alpha Centauri, is about 1.3 parsecs away.
A very great distance, amount of time, etc.
Find another word for light year. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for light year, like: astronomical-unit, parsec and light year.