dictionary.pt
light-year
nounmasculinetechnicalcommon/ˈɐnuʃ ˈluʃ/a·nos-·luz
Definition
1Unit of measurement of distance used in astronomy, equivalent to the distance light travels in one year, in vacuum (approximately 9.46 trillion kilometres).
Usage examples
“The nearest star to the Sun is about 4.2 light-years away.”
“The observed galaxy is located millions of light-years from Earth.”
Common combinations
distance in light-yearsmillions of light-yearsmeasure in light-yearslight-years away