Launch ¹ vb 1 to move ( a vessel ) into the water, esp. for the first time. 2 a to start off or set in motion: to launch an appeal. b to put ( a new product on the market. ) 3 to set (a rocket, missile, or spacecraft) into motion. 4 involve (oneself) totally and enthusiastically: Francis launched himself into the transfer market with gusto. 5 launch into to start talking or writing. 6 (usually foll. by out ) to start (out) on a new enterprise. > 7 an act or instance of launching. [Late Latin lanceare to use a lance, hence, to set in motion] launcher n

Launch ² n a motor driven boat. [Malay lancharan boat, from lanchar speed]