Begin
Start
Synonyms: Start, go about, launch into, take up, undertake, initiate, institute, get ahead with, get going on, set about, embark on, get down to, turn one's hand to, tackle, set in motion, inaugurate, get cracking on, and commence.
Appear
Synonyms: Appear, become apparent, spring up, turn up, emerge, come into being, start, unfold, become established, occur, come to pass, arise, make an appearance, crop up, surface, come into existence, originate, develop, set in, happen, and commence.
Open
Synonyms: Open, get under way, get off the ground, start off, start the ball rolling, get the show on the road, fire away, commence, lead off, get going, start, go ahead, kick off, get to it, and take the plunge.
Example Sentences
Let the race begin now.
We begin class at noon.
The meeting will begin shortly.
They begin training next week.