'Light year' definitions:
Definition of 'light year'
From: WordNet
noun
The distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers [syn: light year, light-year]
Definition of 'Light year'
From: GCIDE
- Light-year \Light-year\, Light year \Light year\ (Astron.)
- 1. The distance over which light can travel in a year's time in a vacuum, 5.88 trillion miles (9.46 trillion kilometers); -- used as a unit in expressing stellar distances. It is more than 63,000 times as great as the distance from the earth to the sun. The star nearest to the earth's sun is about 4 light years distant. [Webster 1913 Suppl. +PJC]
- 2. a very large difference; -- used figuratively to express great differences (of distance, quality, time) in comparisons. "Although having the same rank and salary, they were light-years apart in their ability to perform their jobs." [PJC]
Synonyms of 'light year'
From: Moby Thesaurus
- aesthetic distance,
- astronomical unit,
- celestial spaces,
- chaos,
- clearance,
- compass,
- cosmic space,
- deep space,
- depths of space,
- distance,
- divergence,
- empty space,
- ether space,
- extent,
- farness,
- infinity,
- interstellar space,
- leeway,
- length,
- light-years,
- margin,
- metagalactic space,
- mileage,
- ocean of emptiness,
- outer space,
- parsec,
- parsecs,
- perspective,
- piece,
- pressureless space,
- range,
- reach,
- remoteness,
- separation,
- space,
- span,
- stretch,
- stride,
- the void,
- the void above,
- way,
- ways