Quacks

Synonyms for quacks:

ululations (noun)

ululations, twits.

ululates (verb)

bleats, trills, snorts, squeals, squawks, chatters, honks, Whinnies, bellows, neighs, Cries, ululates, warbles, snarls, caws, coos, roars, gobbles, howls, meows, growls, calls, cuckoos, chirps, bawls, Crows, clucks, yelps, brays, purrs, Bays, hoots, mews, barks, cackles, moos, grunts.

Usage examples for quacks:

• Take notice, I don't address you in the style of a mountebank, or a High German doctor; and yet the kingdom is full of mountebanks, empirics, and quacks. - "The Adventures of Sir Launcelot Greaves", Tobias Smollett.