What is the meaning of the word "business"?

Definitions:

a commercial or industrial enterprise and the people who constitute it noun
- They bought their sibling's business.
a rightful concern or responsibility noun
- it's none of your business
an immediate objective noun
- gossip was the main business of the evening
business concerns collectively noun
- Government and business could not agree
incidental activity performed by an actor for dramatic effect noun
- The business with the cane was hilarious.
the activity of providing goods and services involving financial and commercial and industrial aspects noun
- computers are now widely used in business
the principal activity in your life that you do to earn money noun
- he's not in my line of business
the volume of commercial activity noun
- business is good today