Student Dictionary

One entry found for light-year.
Main Entry: light-year
Pronunciation: primarystresslimacrt-secondarystressyi(schwa)r
Function: noun
1 : a unit of length in astronomy equal to the distance that light travels in one year or 5,880,000,000,000 miles (9,460,000,000,000 kilometers)
2 : a very great distance especially in progress <light-years ahead in design>

Pronunciation Symbols