light-year
light–year
noun \ˈlīt-ˌyir\Definition of LIGHT-YEAR
1
: a unit of length in astronomy equal to the distance that light travels in one year in a vacuum or about 5.88 trillion miles (9.46 trillion kilometers)
2
: an extremely large measure of comparison (as of distance, time, or quality) <seems like light–years ago> <has light–years more talent> <two minutes and yet light–years away from the crowded village — Suzanne Patterson>
See First Known Use of LIGHT-YEAR
1888
Related to LIGHT-YEAR
Synonyms: light-year, world
Near Antonyms: hop, skip, and jump, shouting distance, stone's throw, striking distance; hair, hairbreadth (or hairsbreadth), inch
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