[{"word":"optional","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Something that is not compulsory, especially part of an academic course.","synonyms":[],"antonyms":[]},{"definition":"(sometimes capitalized) In various programming languages, a kind of variable that is assigned a specific data type but may or may not hold an actual value.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"adjective","definitions":[{"definition":"Not compulsory; left to personal choice; elective.","synonyms":["facultative"],"antonyms":["compulsory","mandatory","obligatory"],"example":"On that beach clothing is entirely optional."}],"synonyms":["facultative"],"antonyms":["compulsory","mandatory","obligatory"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/optional"]}]