begin; beginning; bug out; bulge; bulge out; come out; commence; commencement; depart; embark on; first; get; get down; get going; get-go; go; head start; initiate; jump; kickoff; lead off; offset; originate; outset; part; pop; pop out; protrude; scratch; scratch line; set about; set forth; set off; set out; showtime; start out; start up; starting; starting line; starting signal; starting time; startle; take off; take up;