shootout vs gunfight

shootout and gunfight both are nouns.

Word	Noun	Adjective	Verb	Adverb
shootout	Yes	No	No	No
gunfight	Yes	No	No	No

As nouns, shootout and gunfight are synonyms defined as:

shootout and gunfight: a fight involving shooting small arms with the intent to kill or frighten

Other synonyms of shootout include gunplay.

shootout (noun)	gunfight (noun)
a fight involving shooting small arms with the intent to kill or frighten	a fight involving shooting small arms with the intent to kill or frighten