“Dialogue (noun): Conversation between two or more people, or the literary representation of direct speech; quoted utterance; a work written entirely in the form of a colloquy, especially in philosophy; and exchange of ideas or opinions. Adjective: dialogic; adverb: dialogically.
‘He was for long thought to write very bad English, and indeed he gave you the impression or writing with the stub of a blunt pencil; his style was labored, an uneasy mixture of the classical and the slangy, and his dialogue as such that could never have issued from the mouth of a human being.’ W. Somerset Maugham, Cakes and Ale”
Excerpted from: Grambs, David. The Random House Dictionary for Writers and Readers. New York: Random House, 1990.