betrayal vs sellout

betrayal and sellout both are nouns.

Word	Noun	Adjective	Verb	Adverb
betrayal	Yes	No	No	No
sellout	Yes	No	No	No

As nouns, sellout is a hyponym of betrayal; that is, sellout is a word with a more specific, narrower meaning than betrayal:

Other hyponyms of betrayal include double-crossing, double cross.

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