n. 25B6; verb
he launched the boat : SET AFLOAT, put to sea, put into the water.
they've launched the shuttle : SEND INTO ORBIT, blast off, take off, lift off.
a chair was launched at him : THROW, hurl, fling, pitch, lob, let fly; fire, shoot; informal chuck, heave, sling.
the government launched a new campaign : SET IN MOTION, get going, get under way, start, commence, begin, embark on, initiate, inaugurate, set up, organize, introduce, bring into being; informal kick off.
he launched into a tirade : START, commence, burst into.