| betrayer(noun, person, trust, source) |
| traitor(noun, person, trust, rebel) |
| two-timer(noun, impostor, renegade, turncoat) |
| Judas(noun, person, trust, impostor) |
| turncoat(noun, source, sneak, informer) |
| quisling(noun, impostor, renegade, turncoat) |
| Benedict Arnold(noun, expression, informer, rat) |
| informer(noun, source, grass, sneak) |
| deceiver(noun, source, crook, sneak) |
| snake(rebel, sneak, impostor, renegade) |
| apostate(noun, rebel, impostor, renegade) |
| conspirator(impostor, renegade, turncoat, hypocrite) |
| double agent(expression, turncoat, conspirator) |
| fink(noun, source, grass, sneak) |
| renegade(noun, person, rebel, impostor) |
| snitch(noun, source, grass, sneak) |
| back-stabber(impostor, renegade, turncoat, hypocrite) |
| backslider(rebel, impostor, renegade, traitor) |
| defector(rebel, impostor, renegade, traitor) |
| deserter(rebel, impostor, renegade, traitor) |