Dialogue refers to:
* Conversation: A spoken exchange between two or more people. This is the most common usage.
* Literary or dramatic device: The written or spoken words exchanged between characters in a play, novel, film, or other work.
* Exchange of ideas: A process of discussion and negotiation between individuals or groups, often with the goal of reaching a mutual understanding.
Examples:
* "The characters in the play had a lively dialogue about their dreams." (literary device)
* "The two countries engaged in a dialogue about trade agreements." (exchange of ideas)
* "We had a long dialogue about our plans for the weekend." (conversation)