[{"word":"quadrilaterals","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A polygon with four sides.","synonyms":[],"antonyms":[]},{"definition":"An area defended by four fortresses supporting each other.","synonyms":[],"antonyms":[],"example":"The Venetian quadrilateral comprised Mantua, Peschiera, Verona, and Legnano."}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/quadrilateral","https://en.wiktionary.org/wiki/quadrilaterals"]}]