[{"word":"fentanyl","phonetic":"/ˈfɛntənɪl/","phonetics":[{"text":"/ˈfɛntənɪl/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A particularly powerful opioid narcotic painkiller, N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/fentanyl"]}]