| betrayer(noun, opposition, source, agent, villain) |
| squealer(noun, law, person, knowledge, slang) |
| fink(noun, law, person, knowledge, slang) |
| snitch(noun, law, person, knowledge, slang) |
| nark(noun, source, agent, gossip) |
| sneak(noun, person, source, gossip) |
| tattletale(noun, law, person, knowledge, source) |
| traitor(noun, person, opposition, agent, villain) |
| reporter(noun, agent, sneak, messenger) |
| secret agent(noun, expression, idiom, plant, agent) |
| snake(noun, sneak, reporter, rat) |
| double-crosser(noun, source, grass, sneak) |
| prosecutor(noun, opposition, agent, villain, rebel) |
| snitcher(noun, law, person, knowledge, slang) |
| turncoat(noun, source, grass, sneak) |
| plant(noun, source, agent, operative) |
| whistle-blower(source, grass, sneak, rascal) |
| Benedict Arnold(noun, expression, rat, turncoat) |
| Judas(turncoat, conspirator) |
| agent(noun, plant, opposition, villain, rebel) |