sellout vs sell out

sellout is a noun but sell out is not a noun.

Word	Noun	Adjective	Verb	Adverb
sellout	Yes	No	No	No
sell out	No	No	Yes	No

sellout (noun)	sell out (noun)
a betrayal of one's principles principles, country, cause, etc.
the selling of an entire stock of something
an event for which all tickets are sold
someone who has sold out

sellout (verb)	sell out (verb)
	abandon one's principles for expedience or financial gain
	sell or get rid of all one's merchandise