135 synonyms for start such as dash, appear, begin, begin one's journey, activate, activate, blench, bound, and charge. Start is a verb, and its antonyms are finish, end, and clear up.
Appear, arise, arrive, be born, begin, break, burst out, come forth, come into being, come into existence, commence, crop up, develop, emerge, erupt, first see the light of day, get going, get under way, go ahead, kick off, originate, and unfold.
Begin, buckle to/down, commence, fire away, get cracking, get down to business, get down to it, get going, get moving, get off one's backside, get one's finger out, get stuck in, get the show on the road, get to it, get weaving, go ahead, kick off, lay the first stone, make a beginning, make a start, make the first move, pitch in, put one's hand to the plough, set things moving, start/get/set the ball rolling, take something forward, take the first step, take the plunge, and turn to.
Begin one's journey, depart, embark, get on the road, get under way, hit the road, hit the trail, leave, make a start, push off, sail, sally forth, set forth, set forward, set off, set out, and start out.
Activate, begin, bring into being, create, embark on, establish, float, found, get something functioning, get something going, get something moving, get something off the ground, get something working, inaugurate, initiate, institute, introduce, kick something off, kick-start, launch, lay the cornerstone of, lay the first stone of, lay the foundations of, make a start on, mastermind, open, organize, originate, pioneer, put in place, set about, set up, sow the seeds of, and tackle.
Activate, actuate, energize, fire up, get/set something going/moving, kick-start, set in motion, set off, start off, start something functioning, start something operating, switch on, and turn on.
Blench, flinch, jerk, jump, recoil, shrink, shy, twitch, and wince.
Bound, charge, dart, dash, dive, jump, leap, pounce, rush, and spring.