a project undertaken or to be undertaken, esp. one that is important or difficult or that requires boldness or energy

To keep the peace is a difficult enterprise.

a plan for such a project.

participation or engagement in such projects

Our country was formed by the enterprise of resolute men and women.

boldness or readiness in undertaking; adventurous spirit; ingenuity.

a company organized for commercial purposes; business firm.

( initial capital letter ) Military . the first nuclear-powered U.S. aircraft carrier, commissioned in 1961, with a displacement of 89,000 tons (80,723 m ton) and eight reactors.

( initial capital letter, italics ) U.S. Aerospace . the first space shuttle, used for atmospheric flight and landing tests.

noun

idleness , inactivity , unemployment , apathy , indolence , passiveness , passivity

noun

action , activity , affair , attempt , baby * , bag * , ballgame , biggie , big idea , bit * , business , campaign , cause , company , concern , crusade , deal , deed , do * , effort , endeavor , engagement , essay , establishment , firm , flier * , follow through * , game * , happening , hazard , house , move , operation , outfit , performance , pet project , plan , plunge * , program , project , proposition , purpose , pursuit , risk , scheme , speculation , stake , striving , stunt , task , thing * , trade , try , venture , work , adventurousness , alertness , ambition , audacity , boldness , courage , daring , dash , drive , eagerness , enthusiasm , force , foresight , get-up-and-go , gumption , hustle , industry , initiative , inventiveness , pluck , push , readiness , resource , self-reliance , spirit , venturesomeness , vigor , zeal , undertaking , emprise , corporation , punch , adventure , exploit