Possible Definitions:
1. Dialogue (n.) A conversation between two or more persons; particularly, a formal conservation in theatrical performances or in scholastic exercises.
2. Dialogue (n.) A written composition in which two or more persons are represented as conversing or reasoning on some topic; as, the Dialogues of Plato.
3. Dialogue (v. i.) To take part in a dialogue; to dialogize.
4. Dialogue (v. t.) To express as in dialogue.