dialogue vs dialog

dialogue and dialog both are nouns.

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

As nouns, dialogue and dialog are synonyms defined as:

As nouns, dialogue and dialog are synonyms defined as:

Other synonyms of dialogue include duologue.

As nouns, dialogue and dialog are synonyms defined as:

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

dialogue (noun)	dialog (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