| informer(noun, law, person, knowledge, source) |
| sneak(noun, source, grass, decoy, informer) |
| snitch(noun, law, knowledge, slang, source) |
| stool pigeon(noun, expression, idiom, law, knowledge) |
| fink(noun, law, knowledge, slang, source) |
| rat(noun, law, knowledge, informal, source) |
| canary(noun, source, gossip, grass, sneak) |
| squealer(noun, law, knowledge, slang, source) |
| tattletale(noun, law, person, knowledge, source) |
| betrayer(noun, source, grass, sneak, informer) |
| informant(noun, law, person, knowledge, source) |
| snitcher(noun, law, knowledge, slang, source) |
| grass(noun, sneak, decoy, informer, informant) |
| sneaker |
| stoolpigeon |
| tattler(noun, law, person, knowledge, source) |
| blabbermouth(noun, source, gossip, sneak, informer) |
| nark(noun, catch, trap, source, gossip) |
| decoy(noun, trap, bait) |
| stool-pigeon |