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Definition of Light year
1. Noun. The distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers.
Exact synonyms: Light-year
Generic synonyms: Astronomy Unit
Terms within: Light Hour, Light Minute, Light Second
Generic synonyms: Astronomy Unit
Terms within: Light Hour, Light Minute, Light Second
Definition of Light year
1. Noun. (astronomy) A unit of length (''abbreviation'' ly; equal to just under 10 trillion kilometres (1016 metres)) equal to the distance light travels in one year; used to measure extremely large distances. ¹
2. Noun. (''in plural '''light years'''; figurative, informal'') A very long way. ¹
3. Noun. (''in plural '''light years'''; figurative, informal, nonstandard'') A very long time. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Light Year
Other Resources:
Albanian