| experiment(noun, check, struggle, approval, examination) |
| test(noun, study, check, measure, struggle) |
| trial(noun, study, check, run, measure) |
| dry run(noun, expression, study, check, run) |
| examination(noun, study, check, measure, struggle) |
| tryout(noun, study, check, run, measure) |
| check(noun, study, measure, struggle, approval) |
| assay(noun, study, check, measure, struggle) |
| rehearsal(noun, study, run, measure, test) |
| road test(noun, expression, run, vehicle, trial) |
| bench test(noun, expression, run, trial, tryout) |
| practical test(noun, expression, run, trial, tryout) |
| procedure |
| proof(noun, study, check, measure, struggle) |
| shakedown(noun, struggle, examination, test, effort) |
| test flight(noun, run) |
| audition(noun, struggle, examination, test, trial) |
| experimentation(noun, study, measure, struggle, examination) |
| pilot plan |
| practice(noun, study, measure, test, trial) |