| inquirer |
| inquisitive |
| inspect(verb, study, check, consider, notice) |
| interview(verb, examine, challenge, seek, search) |
| kibitz |
| knock(verb, examine, challenge, request, question) |
| leave no stone unturned(verb, expression, idiom, check, sound) |
| look(verb, check, examine, watch, seek) |
| look for(verb, expression, phrasal verb, check, examine) |
| look high and low(verb, expression, idiom, check, sound) |
| look over(verb, expression, phrasal verb, study, check) |
| look through(verb, phrasal verb, inquiry) |
| meddler |
| monkey(verb, make, fiddle, tamper) |
| peavey(noun, device, machine, tool, lever) |
| pedal(noun, device, machine, tool, lever) |
| penetrate(verb, consider, determine, follow, notice) |
| petition(verb, examine, challenge, seek, search) |
| pick(verb, break, open, locked) |
| pierce(verb, consider, determine, follow, notice) |