treachery vs sellout

treachery and sellout both are nouns.

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

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

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

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