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