double cross vs treason

double cross and treason both are nouns.

Word	Noun	Adjective	Verb	Adverb
double cross	Yes	No	Yes	No
treason	Yes	No	No	No

As nouns, treason is a hypernym of double cross; that is, treason is a word with a broader meaning than double cross:

Other hypernyms of double cross include betrayal, perfidy, treachery.

double cross (noun)	treason (noun)
an act of betrayal	a crime that undermines the offender's government
	an act of deliberate betrayal
	disloyalty by virtue of subversive behavior

double cross (verb)	treason (verb)
betray by double-dealing