| pry(noun, verb, person, hinder, examine) |
| sleuth(noun, verb, person, plant, examine) |
| eavesdropper(noun, person, agent, gossip) |
| private eye(noun, expression, agent, informer) |
| eavesdrop(verb, bug, listen, monitor) |
| gumshoe(noun, person, wait, agent) |
| butt-in(noun, person, gossip, nuisance) |
| peeper(noun, agent, informer, reporter) |
| pragmatist(noun, person, sneak, ferret) |
| private investigator(noun, expression, agent, informer) |
| scout(noun, verb, person, plant, examine) |
| shamus(noun, agent, informer, reporter) |
| mouse(verb, watch, search, detect) |
| dick(noun, agent, informer, reporter) |
| informer(noun, plant, agent, gossip) |
| pryer(noun, person, sneak, ferret) |
| secret agent(noun, expression, idiom, plant, agent) |
| shadow(noun, verb, examine, case, discover) |
| tail(noun, verb, examine, case, discover) |
| Sherlock Holmes(expression, agent, informer, reporter) |