Synonyms of jaw in English:

jawbone, lower jaw, mandible

maxilla, upper jaw

mouth, maw, muzzle, lips

informal chops

chat, talk, conversation, gossip, chatter, chitter-chatter, heart-to-heart, tête-à-tête, powwow, blether, blather

conference, discussion, dialogue, exchange

Indian adda

gas, confab, gabber

British natter, chinwag, rabbit

Northern English Scottish crack

North American rap, bull session, gabfest

Australian convo

formal confabulation

rare colloquy

chat, talk, gossip, chatter, chitter-chatter, speak, converse, have a conversation, engage in conversation, tittle-tattle, prattle, jabber, jibber-jabber, babble, prate, go on, run on

communicate

British talk nineteen to the dozen

Irish Scottish slabber

gas, have a confab, chew the rag, chew the fat, yap, yak, yackety-yak, yabber, gabber, yatter, yammer, powwow

British natter, witter, rabbit, chunter, waffle, have a chinwag, chinwag

North American shoot the breeze, shoot the bull, visit

NZ Australian mag

formal confabulate

archaic twaddle, twattle, clack, claver