| betrayer(noun, person, trust, source, spy) |
| traitor(noun, person, trust, rebel, spy) |
| turncoat(noun, source, spy, sneak, informer) |
| Benedict Arnold(noun, expression, spy, informer) |
| informer(noun, source, spy, grass, sneak) |
| deceiver(noun, source, spy, crook, sneak) |
| fink(noun, source, spy, grass, sneak) |
| snitch(noun, source, spy, grass, sneak) |
| weasel(noun, source, grass, sneak, decoy) |
| accuser(source, sneak, informant, squealer) |
| announcer(source, sneak, informant, squealer) |
| backstabber(informer, rascal, scoundrel, swine) |
| blabbermouth(source, grass, sneak, decoy, informer) |
| canary(source, grass, sneak, decoy, informer) |
| crier(source, sneak, informant, squealer) |
| deep throat(expression, source, grass, sneak, informer) |
| herald(source, sneak, informant, squealer) |
| informant(source, grass, sneak, decoy, informer) |
| interviewer(source, sneak, informant, squealer) |
| journalist(source, sneak, informant, squealer) |