| fink(noun, source, sneak, informer) |
| snitch(noun, source, grass, sneak) |
| betrayer(source, grass, sneak, informer) |
| informer(source, grass, sneak, rascal) |
| snitcher(source, grass, sneak, informer) |
| squealer(source, grass, sneak, informer) |
| stool pigeon(noun, expression, source, informer) |
| tattletale(source, sneak, informer, rat) |
| Benedict Arnold(expression, impostor, renegade, turncoat) |
| Judas(impostor, renegade, turncoat, hypocrite) |
| apostate(impostor, renegade, turncoat, hypocrite) |
| back-stabber(impostor, renegade, turncoat, hypocrite) |
| backslider(impostor, renegade, turncoat, hypocrite) |
| conspirator(impostor, renegade, turncoat, hypocrite) |
| deceiver(source, sneak, rat, impostor) |
| defector(impostor, renegade, turncoat, hypocrite) |
| deserter(impostor, renegade, turncoat, hypocrite) |
| double-crosser(source, grass, sneak, informer) |
| hypocrite(impostor, renegade, turncoat, conspirator) |
| impostor(renegade, turncoat, hypocrite, conspirator) |