[{"word":"fartlek","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"An athletic training technique, used especially in running, in which periods of intense effort alternate with periods of less strenuous effort in a continuous workout.","synonyms":["interval training"],"antonyms":[]}],"synonyms":["interval training"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/fartlek"]}]