I. ˈ ̷ ̷| ̷ ̷ noun
Etymology: light (I)
: a unit of length in interstellar astronomy equal to the distance that light travels in one year in a vacuum or 5,878,000,000,000 miles
II. noun
: an extremely large measure of comparison (as of distance, time, or quality)
two minutes and yet light-years away from the crowded village — Suzanne Patterson