| ask(investigate, penetrate, explore, research) |
| be all ears(verb, study, consider, examine, review) |
| bug(verb, study, consider, examine, review) |
| consider(verb, study, examine, review, case) |
| delve(verb, study, consider, examine, review) |
| delve into(expression, study, examine, investigate) |
| examine(study, consider, question, investigate, inspect) |
| feel around(expression, investigate, penetrate, research) |
| frisk(verb, study, consider, examine, review) |
| give the once over(expression, idiom, study, consider, examine) |
| inquisite(verb, study, consider, examine, review) |
| investigate(verb, study, check, examine, inspect) |
| listen in(verb, expression, study, consider, examine) |
| look over(verb, expression, study, consider, examine) |
| muckrake(verb, study, consider, examine, review) |
| nose around(verb, expression, study, consider, examine) |
| penetrate(investigate, explore, research, poke) |
| pierce(investigate, penetrate, explore, research) |
| prod(investigate, penetrate, explore, research) |
| pry(verb, study, consider, examine, review) |