[{"word":"tractor-trailer","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A large truck consisting of an engine and cab section (the tractor) and a cargo-carrying semi-trailer or trailer.","synonyms":[],"antonyms":[]}],"synonyms":["articulated lorry","eighteen-wheeler","semi"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/tractor-trailer"]}]