• set (a boat) in motion by pushing it or allowing it to roll into the water

Synonyms: set afloat, float

• start or set in motion (an activity or enterprise)

Synonyms: launch, introduce, organize, start, begin, embark on, usher in, initiate, put in place, instigate, institute, inaugurate, set up, bring out, open, get under way, set in motion, get going

• an act or instance of launching something

• a large motorboat, used especially for short trips