quack

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quack¹

(kwăk)

The characteristic sound uttered by a duck.

intr.v. quacked, quack·ing, quacks

To utter the characteristic sound of a duck.

[Middle English quek, of imitative origin.]

quack′y adj.

quack²

(kwăk)

1. An untrained person who pretends to be a physician and dispenses medical advice and treatment.

2. A charlatan; a mountebank.

adj.

Relating to or characteristic of a quack: a quack cure.

intr.v. quacked, quack·ing, quacks

To act as a medical quack or a charlatan.

[Short for quacksalver.]

quack′er·y n.

quack′ish adj.

quack′ish·ly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

quack

(kwæk)

vb (intr)

1. (of a duck) to utter a harsh guttural sound

2. to make a noise like a duck

the harsh guttural sound made by a duck

[C17: of imitative origin; related to Dutch kwakken, German quacken]

quack

(kwæk)

a. an unqualified person who claims medical knowledge or other skills

b. (as modifier): a quack doctor.

2. (Medicine) informal Brit and Austral and NZ a doctor; physician or surgeon

(intr) to act in the manner of a quack

[C17: short for quacksalver]

ˈquackish adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

quack¹

(kwæk)

n.

1. the harsh, throaty cry of a duck or any similar sound.

v.i.

2. to utter a quack.

[1610–20; compare Dutch kwakken, German quacken]

quack²

(kwæk)

n.

1. a fraudulent pretender to medical skill.

2. a person who pretends, professionally or publicly, to skill, knowledge, or qualifications he or she does not possess; a charlatan.

adj.

3. being a quack: a quack psychologist.

4. of, pertaining to, or befitting a quack or quackery: quack methods; quack medicine.

[1620–30; short for quacksalver]

quack′ish, adj.

quack′ish•ness, n.

quack

Past participle: quacked
Gerund: quacking

Imperative
quack
quack

Present
I quack
you quack
he/she/it quacks
we quack
you quack
they quack

Preterite
I quacked
you quacked
he/she/it quacked
we quacked
you quacked
they quacked

Present Continuous
I am quacking
you are quacking
he/she/it is quacking
we are quacking
you are quacking
they are quacking

Present Perfect
I have quacked
you have quacked
he/she/it has quacked
we have quacked
you have quacked
they have quacked

Past Continuous
I was quacking
you were quacking
he/she/it was quacking
we were quacking
you were quacking
they were quacking

Past Perfect
I had quacked
you had quacked
he/she/it had quacked
we had quacked
you had quacked
they had quacked

Future
I will quack
you will quack
he/she/it will quack
we will quack
you will quack
they will quack

Future Perfect
I will have quacked
you will have quacked
he/she/it will have quacked
we will have quacked
you will have quacked
they will have quacked

Future Continuous
I will be quacking
you will be quacking
he/she/it will be quacking
we will be quacking
you will be quacking
they will be quacking

Present Perfect Continuous
I have been quacking
you have been quacking
he/she/it has been quacking
we have been quacking
you have been quacking
they have been quacking

Future Perfect Continuous
I will have been quacking
you will have been quacking
he/she/it will have been quacking
we will have been quacking
you will have been quacking
they will have been quacking

Past Perfect Continuous
I had been quacking
you had been quacking
he/she/it had been quacking
we had been quacking
you had been quacking
they had been quacking

Conditional
I would quack
you would quack
he/she/it would quack
we would quack
you would quack
they would quack

Past Conditional
I would have quacked
you would have quacked
he/she/it would have quacked
we would have quacked
you would have quacked
they would have quacked

Collins English Verb Tables © HarperCollins Publishers 2011

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Noun	1.	quack - an untrained person who pretends to be a physician and who dispenses medical advice doc, doctor, physician, Dr., MD, medico - a licensed medical practitioner; "I felt so bad I went to see my doctor" charlatan, mountebank - a flamboyant deceiver; one who attracts customers with tricks or jokes
	2.	quack - the harsh sound of a duck sound - the sudden occurrence of an audible event; "the sound awakened them"
Verb	1.	quack - utter quacking noises; "The ducks quacked" let loose, let out, utter, emit - express audibly; utter sounds (not necessarily words); "She let out a big heavy sigh"; "He uttered strange sounds that nobody could understand"
	2.	quack - act as a medical quack or a charlatan practice of medicine, medicine - the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries; "he studied medicine at Harvard" behave, act, do - behave in a certain manner; show a certain behavior; conduct or comport oneself; "You should act like an adult"; "Don't behave like a fool"; "What makes her do this way?"; "The dog acts ferocious, but he is really afraid of people"
Adj.	1.	quack - medically unqualified; "a quack doctor" unqualified - not meeting the proper standards and requirements and training

quack

noun

1. doctor, GP, physician, medical practitioner I went everywhere for treatment, tried all sorts of quacks.

2. charlatan, fraud, fake, pretender, humbug, impostor, mountebank, phoney or phony (informal) The man was a quack after all, just as Rosalinda had warned.

adjective

1. fake, fraudulent, phoney or phony (informal), pretended, sham, counterfeit Why do intelligent people find quack remedies so appealing?

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

quack

noun

One who fakes:

charlatan, fake, faker, fraud, humbug, impostor, mountebank, phony, pretender.

Translations

صَوْت البَطمُشَعْوِذيُبَطْبِط

kvákáníkvákatmastičkářšarlatán

kvaksalverrapperappen

quaken Quacksalber

αλμπάνης κομπογιαννίτης πα πα τσαρλατάνος

parpar

prääks

huijarikvaakpuoskarivaakkua

charlatan coin-coin couin-couin faire couin-couin

garg, gagggarga, gagga

ciarlatano qua qua starnazzare

ガーガーガーガーと鳴くガヤガヤしゃべるクェックェックワックワッ

pēkšķēšanapēkšķētšarlatāns

kwakkwaken kwakzalver

gakk gakke kvakksalver

кряканье кря-кря шарлатан

mastičkár

kvakanjekvakati

ördek sesişarlatanvakvaklamakyalancı doktor

冒牌医生嘎嘎叫庸医鸭子嘎嘎叫声

quack

¹ [kwæk]

A. N [of duck] → graznido m

B. VI [duck] → graznar

quack

² [kwæk]

A. N → charlatán/ana m/f; (= doctor) → curandero/a m/f (pej) → matasanos mf inv

B. CPD [remedy] → de curandero
quack doctor N → medicucho/a m/f, curandero/a m/f

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

quack

[ˈkwæk]

[duck] → coin-coin m inv

(pejorative) (= doctor) → charlatan m

vi [duck] → faire coin-coin

modif [remedy, cure] → de charlatan quack doctorquack doctor n → charlatan m

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

quack

n → Schnattern nt no pl, → Quaken nt no pl; quack-quack (baby-talk) → Entchen nt

vi (duck) → schnattern, quaken, quak machen (inf); what? she quacked → was?, quakte sie

quack

n (also quack doctor) → Quacksalber m, → Kurpfuscher m; (hum: = doctor) → Doktor m, → Medizinmann m (hum)

adj attr → Kurpfuscher-; quack methods → Kurpfuschermethoden pl; quack remedy → Mittelchen nt

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

quack

¹ [kwæk]

1. n (of duck) → qua qua m inv

2. vi → fare qua qua

quack

² [kwæk] n (pej) (bogus doctor) → ciarlatano/a (hum) (doctor) → dottore/essa

quack¹

(kwak) noun

the cry of a duck.

verb

to make such a sound. The ducks quacked noisily as they swam across the pond.

quack²

(kwak) noun

(used as an adjective) a person who dishonestly claims to have medical qualifications. a quack doctor/psychologist; quack medicine/cures.

quack

n. charlatán, persona que pretende tener cualidades o conocimientos para curar enfermedades.

quack

n (fam) matasanos mf, charlatán -tana mf

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References in classic literature ?

And the White Duck brought the little creatures up, and they paddled after her in the pond, and caught gold-fish, and hopped upon the bank and waddled about, ruffling their feathers and saying 'Quack, quack' as they strutted about on the green banks of the pond.

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"Quack?" said Jemima Puddle-duck, with her head and her bonnet on one side-- "Quack?"

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She gathered together her quack periodicals and her quack medicines, and thus armed with death, went about on her pale horse, metaphorically speaking, with "hell following after." But she never suspected that she was not an angel of healing and the balm of Gilead in disguise, to the suffering neighbors.

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the higher things of life, how fine they are!" said the Duck; "and that reminds me how hungry I feel": and she swam away down the stream, saying, "Quack, quack, quack."

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From the selling of quack medicines he had proceeded to the adulterating of foreign wines, varied by lucrative evening occupation in the Paris gambling houses.

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All at once there began to go a sort of bustle among the bulrushes; a wild duck flew up with a quack, another followed, and soon over the whole surface of the marsh a great cloud of birds hung screaming and circling in the air.

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In my country, those whom physicians abandon run the chance of a quack, who kills them ten times but saves them a hundred times."

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He threw out biting remarks on Lydgate's tricks, worthy only of a quack, to get himself a factitious reputation with credulous people.

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Earlier in the evening he had had a telephone conference with the Ancient Mariner, who had reported only progress with an exceptionally strong nibble that very day from a retired quack doctor.

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Nay, he would sometimes retire hither to take his beer, and it was not without difficulty that he was prevented from forcing Jones to take his beer too: for no quack ever held his nostrum to be a more general panacea than he did this; which, he said, had more virtue in it than was in all the physic in an apothecary's shop.

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He isn't the first quack with a handle to his name.

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He had sold the skeleton to a traveling quack for three dollars and was enjoying the result!

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