Quantcast
Welcome to the new LearnersDictionary.com. We want to hear your thoughts about the new design.

light–year

1 ENTRIES FOUND:
Save
light–year/ˈlaɪtˌjiɚ/noun
plurallight–years
light–year
/ˈlaɪtˌjiɚ/
noun
plurallight–years
  
[count]technical : a unit of distance equal to the distance that light travels in one year (about 5.88 trillion miles or 9.46 trillion kilometers)
light-years [plural] 
— used to say that someone or something is much better or more advanced than others
   b — used to refer to a time that is or seems very far away
Comments & Questions  
Comments & Questions
What made you want to look up light–year? Include any comments and questions you have about this word.