| scrutinize(verb, study, give, check, separate) |
| winnow(verb, study, check, separate, remove) |
| screen(noun, verb, study, order, check) |
| investigate(verb, action, study, check, separate) |
| probe(verb, action, study, check, separate) |
| examine(verb, action, study, check, separate) |
| filter(noun, verb, separate, remove, strain) |
| separate(verb, order, place, part, remove) |
| sort(noun, verb, order, place, separate) |
| strain(verb, separate, remove, clean, drain) |
| study(verb, check, run, consider, observe) |
| sieve(verb, separate, remove, clean, drain) |
| grade(noun, verb, order, separate, remove) |
| scrutinise |
| comb(verb, study, check, separate, remove) |
| seek(verb, move, action, act, movement) |
| explore(verb, action, study, check, separate) |
| purify(verb, separate, remove, clean, drain) |
| riddle(verb, separate, remove, strain, arrange) |
| look into(verb, expression, phrasal verb, action, study) |