quack
/kwæk/
NOUN
1. The sound made by a duck
The characteristic short, harsh vocal sound produced by a duck.
1.1. Duck vocalization
The distinctive call or cry made by a duck.
Synonyms
- duck call
- duck sound
Examples
- The pond echoed with the cheerful quack of ducks.
- Startled by a sudden noise, the timid duck let out a loud quack.
Related Words
- quacking
- squawk
- honk
- cackle
- birdcall
NOUN
2. A fraudulent or incompetent medical practitioner
A person who falsely claims medical knowledge or qualifications, or who practices medicine incompetently or dishonestly.
2.1. Fake or unqualified doctor
A person who pretends to be a qualified medical professional or promotes ineffective treatments through deception.
Synonyms
- charlatan
- quacksalver
- mountebank
- medical fraud
Antonyms
- qualified doctor
- legitimate physician
- medical professional
Examples
- The authorities warned residents not to trust the quack who was selling fake cures.
Related Words
2.2. Fraudulent or incompetent professional
A person who claims expertise in a particular field but lacks the necessary knowledge, skill, or qualifications.
Synonyms
Antonyms
- expert
- professional
- authority
- genuine specialist
Related Words
- deceiver
- con artist
- swindler
- bluffer
- trickster
2.3. A charlatan or deceptive person
Someone who deceives others by making false claims about their abilities, knowledge, or achievements.
Synonyms
Antonyms
- honest person
- genuine expert
Related Words
NOUN
3. A doctor
A medical practitioner; an informal or sometimes derogatory use of the word.
3.1. Medical practitioner
A person who practices medicine and provides medical care, particularly in informal or dated usage.
Synonyms
- doctor
- physician
- medical practitioner
Related Words
- surgeon
- clinician
- general practitioner
- healthcare provider
VERB
4. Making a duck-like sound
To produce the characteristic vocal sound of a duck.
4.1. Producing a duck's call
Making a short, harsh sound resembling the vocalization of a duck.
Synonyms
- squawk
- honk
- cackle
Examples
- The ducks quacked loudly as the children approached the pond.
Related Words
VERB
5. Practicing fraudulent medicine
To practice medicine dishonestly or incompetently, especially by promoting false diagnoses or ineffective treatments.
5.1. Practicing medical deception
Offering fraudulent medical advice or treatments while pretending to possess legitimate medical expertise.
Synonyms
Antonyms
- practice medicine legitimately
- treat professionally
Related Words
- mislead
- swindle
- impersonate
- fake
VERB
6. Making vain or exaggerated claims
To make loud, boastful, or unfounded claims about one's abilities or importance.
6.1. Boasting and making false pretensions
Speaking boastfully or pretending to possess abilities, knowledge, or status that one does not have.
Synonyms
- boast
- bluster
- brag
- pretend
Antonyms
- be modest
- speak sincerely
Related Words
- pretension
- exaggerate
- bluff
- braggart
ADJECTIVE
7. Falsely claiming medicinal powers
Describing something that is falsely represented as having the ability to cure or treat illness.
7.1. Fake medicinal treatments
Referring to products, remedies, or treatments that are promoted as medically effective without legitimate evidence or efficacy.
Synonyms
- fraudulent
- bogus
- spurious
- sham
- fake
Antonyms
- genuine
- legitimate
- proven
- authentic
Related Words
- unproven
- deceptive
- ineffective
- counterfeit