[{"word":"teleconverter","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A secondary lens mounted between the camera and a photographic lens so as to enlarge the central part of an image obtained by the objective lens.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["speedbooster"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/teleconverter"]}]