Loading page
light year is a noun meaning "the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers". It carries one recorded sense.
the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
Definitions, synonyms and semantic relations for light year come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.