dialogue, dialog, duologue -- (a conversation between two persons)
dialogue, dialog -- (the lines spoken by characters in drama or fiction)
dialogue, dialog -- (a literary composition in the form of a conversation between two people; "he has read Plato's Dialogues in the original Greek")
negotiation, dialogue, talks -- (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")