| tipster(noun, law, person, knowledge, informal) |
| canary(noun, source, gossip, grass, sneak) |
| nark(noun, source, gossip, sneak, informer) |
| weasel(noun, source, grass, sneak, decoy) |
| accuser(source, sneak, informant, squealer) |
| announcer(source, sneak, informant, squealer) |
| bigmouth(noun, gossip, canary, telltale) |
| crier(source, sneak, canary, informant) |
| deep throat(expression, source, grass, sneak, informer) |
| double-crosser(source, grass, sneak, decoy, informer) |
| fat mouth(noun, expression, gossip, sneak) |
| gasser(noun, gossip, canary) |
| herald(source, sneak, informant, squealer) |
| informant(noun, law, person, knowledge, source) |
| interviewer(source, sneak, informant, squealer) |
| journalist(source, sneak, informant, squealer) |
| notifier(source, sneak, canary, informant) |
| peacher(noun, gossip, canary) |
| polly(noun, gossip, canary) |
| preacher(source, sneak, informant, squealer) |