[{"word":"surjection","phonetic":"/sɜː(ɹ).dʒɛk.ʃən/","phonetics":[{"text":"/sɜː(ɹ).dʒɛk.ʃən/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A function that is a many-to-one mapping; (formally) Any function f: X\\rightarrow Y for which for every y \\in Y, there is at least one x \\in X such that f(x) = y.","synonyms":[],"antonyms":[]}],"synonyms":["surjective function"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/surjection"]}]