launch

[1]	start (off) , set in motion , set/get going , begin , embark upon/on , initiate , inaugurate
[2]	originate , establish , organize , set up , found , open , start
[3]	shoot , establish , set up , fire , discharge , found , hurl , throw , sling , pitch , fling , catapult , send , dispatch/despatch
[4]	float , set afloat
[5]	plunge
[6]	set in motion

[1]	launching
[2]	inauguration , start , initiation , opening
[3]	boat , skiff , tender , motor boat , runabout , gig , dinghy