| spurt(noun, verb, show, develop, release) |
| startle(verb, rush, dash, shy, surprise) |
| fissure |
| flash(verb, help, advance, run, promote) |
| flight(noun, verb, break, run, rush) |
| flinch(verb, withdraw, twist, retreat, shy) |
| flit(verb, rush, dash, speed, fly) |
| font(noun, cause, source, foundation, basis) |
| juvenility(noun, time, prime, youth, adolescence) |
| leap over(verb, expression, phrasal verb, clear, conquer) |
| lope(noun, verb, run, slip, rush) |
| mainspring(noun, cause, reason, idea, object) |
| motive(noun, force, cause, start, reason) |
| prime(noun, time, existence, summit, season) |
| puberty(noun, time, informal, prime, youth) |
| shoot up(verb, phrasal verb, spire, tower up) |
| speed(verb, move, run, promote, stimulate) |
| spout(noun, verb, discharge, rush, drain) |
| sprint(noun, verb, run, rush, dash) |
| starting point(expression, cause, top, opening, foundation) |