to set (a boat or ship) in the water.

to float (a newly constructed boat or ship) usually by allowing to slide down inclined ways into the water.

to send forth, catapult, or release, as a self-propelled vehicle or weapon

Rockets were launched midway in the battle. The submarine launched its torpedoes and dived rapidly.

to start (a person) on a course, career, etc.

to set going; initiate

to launch a scheme.

to throw; hurl

to launch a spear.

to start (a new venture) or promote (a new product)

They launched a new breakfast cereal.

Computers . to start (a software program).

to burst out or plunge boldly or directly into action, speech, etc.

to start out or forth; push out or put forth on the water.

the act of launching.

verb

hold , keep , cease , end , finish , stop

verb

barrage , bombard , bung , cast , catapult , discharge , dispatch , drive , eject , fire , fling , heave , hurl , lance , pitch , project , propel , send forth , set afloat , set in motion , shoot , sling , throw , toss , bow , break the ice * , break the seal , commence , embark upon , get show on road , inaugurate , instigate , institute , introduce , jump , kick off * , open , originate , set going , start , start ball rolling , usher in * , dart , dash , hurtle , shy , approach , begin , embark , enter , get off , initiate , lead off , set about , set out , set to , take on , take up , undertake , descant , expatiate , premiere

noun

cast , fling , heave , hurl , pitch , shy , sling , toss , commencement , inauguration , inception , incipience , incipiency , initiation , leadoff , opening , origination , start