dialog vs dialogue

dialog and dialogue both are nouns.

Word	Noun	Adjective	Verb	Adverb
dialog	Yes	No	No	No
dialogue	Yes	No	No	No

As nouns, dialog and dialogue are synonyms defined as:

As nouns, dialog and dialogue are synonyms defined as:

Other synonyms of dialog include duologue.

As nouns, dialog and dialogue are synonyms defined as:

dialog and dialogue: a literary composition in the form of a conversation between two people

dialog (noun)	dialogue (noun)
the lines spoken by characters in drama or fiction	the lines spoken by characters in drama or fiction
a conversation between two persons	a conversation between two persons
a literary composition in the form of a conversation between two people	a literary composition in the form of a conversation between two people
	a discussion intended to produce an agreement