noun
A conversation or other form of discourse between two or more individuals.
(authorship) In a dramatic or literary presentation, the verbal parts of the script or text; the verbalizations of the actors or characters.
(philosophy) A literary form, where the presentation resembles a conversation.
(computing) Nonstandard form of dialog (“dialog box”).
verb
(informal, business) To discuss or negotiate so that all parties can reach an understanding.
(transitive) To put into dialogue form.
(obsolete) To take part in a dialogue; to dialogize.