[{"word":"lightyears","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A unit of length (abbreviation ly; equal to just under 10 trillion kilometres (1016 metres)) equal to the distance light travels in one Julian year; used to measure extremely large distances.","synonyms":[],"antonyms":[]},{"definition":"(only in plural) A very long way.","synonyms":[],"antonyms":[],"example":"The marathon runner in the lead is light years ahead of the one at the back."},{"definition":"(only in plural) A very long time.","synonyms":[],"antonyms":[],"example":"Some of Leonardo da Vinci’s inventions were light years ahead of their time."}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/light%20year","https://en.wiktionary.org/wiki/lightyear","https://en.wiktionary.org/wiki/lightyears"]}]