נוֹכֵל, רַמַאי

quack(noun)

(used as an adjective) a person who dishonestly claims to have medical qualifications

a quack doctor/psychologist; quack medicine/cures.

גִיעגוּעַ

quack(noun)

the cry of a duck.

לְגַעגֵעַ

quack(verb)

to make such a sound

The ducks quacked noisily as they swam across the pond.