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Definitions

quack

[kwak] / kwæk /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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“If it weren’t for Oprah, this quack Dr. Phil would be a nobody. Oprah has a lot to answer for,” reads another.

From Los Angeles Times Aug. 14, 2026

“The Doctors’ Riot of 1788” centers on the New York incident but also tells the broader story of medicine in the early American republic, including quack cures and smallpox panics.

From The Wall Street Journal Jan. 5, 2026

There are also medbed clinics, where people can pay to receive quack treatments from people who claim to have working medbeds.

From Slate Sep. 29, 2025

It’s in service of crank conspiracy theories, quack wellness influencers and weird dystopian visions of supermen doing pull-ups to demonstrate their patriotism.

From Salon Aug. 31, 2025

A quack doctor pitched patent medicines from the back of a wagon: “A rare cordial to fortify the innards against infective parasites, unwholesome damps, and malignant effluvia!”

From "Hollow City" by Ransom Riggs




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