| preliminary(noun, check, approach, approval, examination) |
| preview(noun, approach, kickoff, warm-up, lead-in) |
| probation(noun, check, approval, examination, standard) |
| probing(noun, check, approval, examination, standard) |
| proof(noun, check, approval, examination, standard) |
| run-up(noun, approach, kickoff, warm-up, lead-in) |
| running start(noun, expression, beginning, opening, bow) |
| setting out(noun, expression, beginning, opening, bow) |
| shibboleth(noun, check, approval, examination, standard) |
| source(noun, beginning, opening, birth, dawn) |
| spring(noun, beginning, opening, birth, dawn) |
| square one(noun, expression, beginning, opening, birth) |
| standard(noun, check, approval, examination, trial) |
| start-off(noun, beginning, opening, bow, exit) |
| starting point(expression, start, beginning, onset, origination) |
| substantiation(noun, check, approval, examination, standard) |
| sum |
| takeoff(noun, beginning, opening, birth, dawn) |
| touchstone(noun, check, approval, examination, standard) |
| trial(noun, check, approval, examination, standard) |