dialogue -
a discussion intended to produce an agreement; "the buyout negotiation lasted several days"; "they disagreed but kept an open dialogue"; "talks between Israelis and Palestinians"
discussion,
give-and-take,
word an extended communication (often interactive) dealing with some particular topic; "the book contains an excellent discussion of modal logic"; "his treatment of the race question is badly biased"
dialogue -
To take part in a dialogue; to dialogize.
Wikipedia
Dialogue (sometimes spelled dialog in North American English) is a literary and theatrical form, the most notable examples of which in Western literature are the dialogues of Plato. Dialogue is, fundamentally, a written or spoken conversational exchange between two or more people. Its chief historical origins as narrative, philosophical or didactic device are to be found in classical Greek and Indian literature, in particular in the ancient art of rhetoric.
OmegaWiki Dictionary
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dialogue A discussion intended to produce an agreement.