Synonyms of yak in English:

yak

(also yack)

See definition of yak

verb

1‘she was yakking about her passion for antiques’

SYNONYMS
prattle, blather, blether, blither, babble, babble on, gabble, prate, drivel, rattle away, rattle on, ramble, maunder, go on, run on, talk at length, talk incessantly, talk a lot, chatter, yap, gossip
British talk nineteen to the dozen
Scottish, Irish slabber on
informal jabber, blabber, yatter, jaw, gab, gas, chit-chat, yackety-yak
British informal rabbit, witter, waffle, natter, chunter, talk the hind legs off a donkey
North American informal run off at the mouth
Australian, New Zealand informal mag
archaic twaddle, twattle, claver, clack