[{"word":"concavities","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The state of being concave","synonyms":[],"antonyms":[]},{"definition":"A concave structure or surface","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["convexity"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/concavities","https://en.wiktionary.org/wiki/concavity"]}]