[{"word":"alums","phonetic":"/ˈa.ləmz/","phonetics":[{"text":"/ˈa.ləmz/","audio":""},{"text":"/ˈæ.ləmz/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"An astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K2SO4·Al2(SO4)3·24H2O).","synonyms":[],"antonyms":[]},{"definition":"Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalent cations.","synonyms":[],"antonyms":[]}],"synonyms":["potash alum"],"antonyms":[]},{"partOfSpeech":"noun","definitions":[{"definition":"(shortening) A past attendee or graduate (of either gender) of a college, university or other educational institution.","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/alum","https://en.wiktionary.org/wiki/alums"]}]