is a specific kind of: criminal, crook, felon, malefactor, outlaw.

is a broader term that covers: collaborationist, collaborator, quisling | fifth columnist, saboteur | traitress.

instances of which are: Arnold, Benedict Arnold.

derivation: betrayal, perfidy, treachery, treason | high treason, lese majesty, treason | subversiveness, traitorousness, treason | faithless, traitorous, treasonable, treasonous, unfaithful.