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quack Definition

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quack
verb(quack)
to make the characteristic cry of a duck
quack
noun(quack)
a noise made by quacking
quack
verb(quack)
to act like a quack
quack
noun(quack)
charlatan
quack
noun(quack)
an ignorant, misinformed, or dishonest practitioner of medicine
quack
adjective(quack)
of, relating to, or used by quacks
quack
noun(quack)
a European grass (Elytrigia repens synonym Agropyron repens) that is naturalized throughout North America and spreads by creeping rhizomes —called also couch grass, quitch, twitch, witchgrass

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