[{"word":"xis","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The 14th letter of Classical and Modern Greek. The 15th in Ancient and Old Greek.","synonyms":[],"antonyms":[]},{"definition":"Either of a pair of hyperons having spin 1/2, which decay into a lambda particle and a pion.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/xi","https://en.wiktionary.org/wiki/xis"]}]