Synonyms of duologue

1 Syllable
chat, flap, script, rap
2 Syllables
parley, confab, lines, powwow, remarks, sides, dialog
3 Syllables
repartee, discussion, parlance, converse, exchange, tête-à-tête, colloquy, dialogue, discourse
4 Syllables
conference, conversation
5 Syllables
confabulation, tete-a-tete, communication, interlocution