| investigate(verb, check, examine, study, consider) |
| examine(verb, investigate, question, test, study) |
| search(verb, investigate, examine, study, check) |
| scrutinize(verb, examine, investigate, study, check) |
| research(verb, study, examine, investigate, check) |
| study(verb, check, consider, observe, view) |
| probe(verb, investigate, question, study, check) |
| look into(verb, expression, investigate, phrasal verb, research) |
| inspect(verb, investigate, study, check, consider) |
| travel(verb, cover, search, tour, spread) |
| check(verb, study, consider, criticize, observe) |
| seek(verb, investigate, look, examine, search) |
| prospect(verb, investigate, consider, look, seek) |
| hunt(verb, investigate, check, examine, search) |
| delve(verb, question, investigate, study, consider) |
| delve into(expression, verb, investigate, phrasal verb, study) |
| exploration(noun, search, investigation, colloquialism) |
| test(verb, search, investigation) |
| ransack(verb, action, check, turn, follow) |
| travel over(verb, phrasal verb, search, investigation) |