Fifth Columnist
Related Definitions
[n] a member of a clandestine subversive organization who tries to help a potential invader
Related Terms
apostate, backslider, bolter, collaborationist, collaborator, convert, crypto, defector, deserter, fellow traveler, fifth column, fraternizer, mugwump, proselyte, quisling, recidivist, recreant, renegade, renegado, renegate, reversionist, runagate, sabote