chat

colloquy, conference, discourse, parley, powwow, symposium

debate, dialogue (also dialog), exchange, give-and-take

crosstalk, happy talk

yak (also yack), yammer, yap

banter, chaff, cross fire, give-and-take, persiflage, raillery, repartee

conference, parley, powwow

babble, chatter, chitchat, confabulation, gabfest, gossip, palaver, prate, prattle, rap, small talk, table talk

round-robin, roundtable, symposium

debate, deliberation

gossip, tattle

descant, discuss, expatiate

yak (also yack), yammer, yap

blabber, blather, bleat, blither, gab, jangle, jaw, patter, prate, rattle, run on, smatter, tittle-tattle, troll, yak (also yack)

maunder, mouth, mumble, murmur, mutter

stammer, stutter

screech, shout, shriek