treasonist

Noun treasonist has 1 sense

• treasonist(n = noun.person) traitor - someone who betrays his country by committing treason;
has particulars: collaborationist, collaborator, quisling, fifth columnist, saboteur, traitress, arnold, benedict arnold
is a kind of criminal, crook, felon, malefactor, outlaw
Derived forms noun treason₃, noun treason₁, noun treason₂