quack

noun

Definition of quacknext
as in fraud
one who makes false claims of identity or expertise don't bother to see that guy, as I've heard he's a quack with no actual training

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of quack Automatic ducking doesn't add quacks to your soundtrack. — PC Magazine, 15 Nov. 2025 As experts departed, quacks arrived. — Charles Bethea, New Yorker, 9 Sep. 2025 Medallion’s Derek Lo figures that his software can cut through the system’s redundancies, slashing the time and cost of paperwork designed to prevent quacks from practicing medicine and safeguard patients that’s spiraled into something burdensome. — Amy Feldman, Forbes.com, 20 Aug. 2025 And this is why hydropathy was not like many of the other quack medical therapies of the not-quite-modern era. — John Jeremiah Sullivan, Harpers Magazine, 29 Apr. 2025 See All Example Sentences for quack
Recent Examples of Synonyms for quack
  1. fraud
  2. fake
  3. sham
  4. charlatan
  5. pretender
  6. mountebank
  7. faker
  8. deceiver
Noun
  • According to Hon Weng Chong, Cortical Labs founder and CEO, some potential applications include drug discovery, humanoid robotics, cybersecurity and fraud detection.
    — Georgina Jedikovska, Interesting Engineering, 21 Aug. 2026
  • In March 2025, the EPA terminated roughly $20 billion in Greenhouse Gas Reduction Fund grants, with EPA Administrator Lee Zeldin alleging programmatic fraud and abuse.
    — Bloomberg, Mercury News, 21 Aug. 2026
Definition of fraud
Noun
  • As part of the investigation, the Canadian Conservation Institute agreed to inspect four potential fakes, which arrived on its doorstep in 2021.
    — Brian Boucher, ARTnews.com, 21 Aug. 2026
  • The second-round pass rusher made aggressive mistakes, falling twice for option fakes and overrunning a screen pass early.
    — Andrew Callahan, Boston Herald, 15 Aug. 2026
Definition of fake
Noun
  • But investigators now say his story was a sham and that behind closed doors, the assistant fire chief was allegedly living a double life.
    — Sarah Rumpf-Whitten, FOXNews.com, 24 Aug. 2026
  • The set also comes with two matching pillow shams to tie everything together.
    — Toni Sutton, PEOPLE, 20 Aug. 2026
Definition of sham
Noun
  • Their actions, goals, and promises mimic that of a charlatan.
    — Gary Franks, Hartford Courant, 24 Aug. 2026
  • Ours is not a society that loathes charlatans; look who’s running things.
    — Lauren Michele Jackson, New Yorker, 19 Aug. 2026
Definition of charlatan
Noun
  • The transfer portal can transform a contender into a pretender in a single offseason.
    — Mike Bianchi, The Orlando Sentinel, 6 Aug. 2026
  • The schedule is forgivable, even by ACC standards, but a rematch on the road against Notre Dame will separate the Canes as contenders or pretenders.
    — Austin Perry OutKick, FOXNews.com, 28 July 2026
Definition of pretender
Noun
  • Good afternoon and welcome to Con Con, the convention for swindlers, mountebanks, and the people who love them.
    — Henry Alford, New Yorker, 1 Dec. 2025
  • Godard might have come across as a species of poseur – a pretentious, quote-spouting mountebank – but his way of seeing was genuinely new.
    — Peter Rainer, Christian Science Monitor, 13 Nov. 2025
Definition of mountebank
Noun
  • To tell the truly venomous from the fakers, there are a couple details to help distinguish the two.
    — Kirsten Fiscus, Nashville Tennessean, 17 Sep. 2025
Definition of faker
Noun
  • The actors are perfectly cast, starting with Marmaï’s likable Antoine, the only player here not being the deceiver.
    — Pete Hammond, Deadline, 12 May 2026
  • The film tells the true and twisted tale of a deceiver of land and folk, who, defying her birth as a woman, comported herself as a man and committed many a wicked deed.
    — Leo Barraclough, Variety, 20 Jan. 2026
Definition of deceiver

Browse Nearby Words

pythons
quack
quackery
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Cite this Entry

“Quack.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/quack. Accessed 27 Aug. 2026.

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