SWYL : What is Enterprise?

Wikipedia says -

• A business, company, or comparable organization

Answers.com says -

1. An undertaking, especially one of some scope, complication, and risk.
2. A business organization.
3. Industrious, systematic activity, especially when directed toward profit: Private enterprise is basic to capitalism.
4. Willingness to undertake new ventures; initiative: “Through want of enterprise and faith men are where they are, buying and selling, and spending their lives like serfs” (Henry David Thoreau).

Princeton says -

• a purposeful or industrious undertaking (especially one that requires effort or boldness); "he had doubts about the whole enterprise"
• an organization created for business ventures; "a growing enterprise must have a bold leader"
• readiness to embark on bold new ventures

Oxford English Dictionary says -

• A design of which the execution is attempted; a piece of work taken in hand, an undertaking; chiefly, and now exclusively, a bold, arduous ,or momentous undertaking.
• Disposition or readiness to engage in undertakings of difficulty, risk or danger; daring spirit
• The action of taking in hand; management, superintendence