noun🔗ShareThe sound made by a duck."Did you hear that duck make a quack?"soundanimalbirdChat with AIVocabulary GamePractice Reading
verb🔗ShareTo make a noise like a duck."Do you hear the ducks quack?"animalsoundnatureChat with AIVocabulary GamePractice Reading
noun🔗ShareA fraudulent healer or incompetent professional; especially, a doctor of medicine who makes false diagnoses or inappropriate treatment; an impostor who claims to have qualifications to practice medicine."That doctor is nothing but a lousy quack!"medicinepersonjobcharacterChat with AIVocabulary GamePractice Reading
noun🔗ShareA charlatan."The website was full of quacks selling fake cures for common illnesses. "personcharacterChat with AIVocabulary GamePractice Reading
noun🔗ShareA doctor.""During the gold rush, many quacks arrived, promising miracle cures to desperate miners." "medicinepersonChat with AIVocabulary GamePractice Reading
verb🔗ShareTo practice or commit quackery (fraudulent medicine)."The unlicensed therapist was quacking, promising quick cures for everyone's ailments. "medicinejobscienceChat with AIVocabulary GamePractice Reading
verb🔗ShareTo make vain and loud pretensions."The student quacks about his supposed knowledge of physics, but he can't even explain basic concepts. "characterattitudelanguagecommunicationsocietyChat with AIVocabulary GamePractice Reading
