call out vs call-out

call out is not a noun while call-out is a noun.

Word	Noun	Adjective	Verb	Adverb
call out	No	No	Yes	No
call-out	Yes	No	No	No

call out (noun)	call-out (noun)
	a challenge to a fight or duel

call out (verb)	call-out (verb)
call out loudly, as of names or numbers
utter aloud; often with surprise, horror, or joy
challenge to a duel