| rule of thumb(noun, expression, idiom, rule) |
| shot(noun, struggle, examination, test, effort) |
| stab(noun, struggle, examination, test, effort) |
| study(noun, approach) |
| tentative |
| testing(noun, struggle, examination, test, effort) |
| trial run(noun, expression, study, check, measure) |
| try(noun, study, check, measure, struggle) |
| undertaking(noun, study, measure, struggle, examination) |
| whack(noun, struggle, examination, test, effort) |
| R and D(noun, expression, idiom, study, measure) |
| approach |
| assessment(noun, check, approval, examination, test) |
| bid |
| blue book(noun, expression, check, approval, examination) |
| check(noun, study, measure, struggle, approval) |
| comp(noun, check, approval, examination, standard) |
| confirmation(noun, check, approval, examination, standard) |
| control |
| control experiment |