[{"word":"cornerstone","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A stone forming the base at the corner of a building.","synonyms":[],"antonyms":[]},{"definition":"Such a stone used ceremonially, often inscribed with the architect's and owner's names, dates and other details.","synonyms":[],"antonyms":[],"example":"The cornerstone on the Flatiron Building is set on the Fifth Avenue facade."},{"definition":"That which is prominent, fundamental, noteworthy, or central.","synonyms":[],"antonyms":[],"example":"Exceptional service is the cornerstone of the hospitality industry."}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/cornerstone"]}]