| wiretapper(noun, listener) |
| yenta(noun, gossip, nuisance, snoop, nosy) |
| Sherlock Holmes(expression, agent, spy, informer, reporter) |
| agent(spy, informer, reporter, gumshoe, investigator) |
| analyst(agent, spy, informer, reporter, gumshoe) |
| audient |
| backseat driver(noun, expression, gossip, nuisance, snoop) |
| bird dog(expression, agent, spy, informer, reporter) |
| bugger |
| bull(agent, spy, informer, reporter, gumshoe) |
| butt-in(noun, gossip, nuisance, sneak, scout) |
| buttinsky(noun, gossip, nuisance, snoop, nosy) |
| constable(agent, spy, informer, reporter, gumshoe) |
| cop(agent, spy, informer, reporter, gumshoe) |
| delator |
| dick(agent, spy, informer, reporter, gumshoe) |
| eavesdroppers |
| eye(agent, spy, informer, reporter, gumshoe) |
| fed(agent, spy, informer, reporter, gumshoe) |
| flatfoot(agent, spy, informer, reporter, gumshoe) |