He has been in the business for 15 years.

The office is busy today.

My favorite restaurant is out of business .

You have no business complaining about the matter.

Causing competitors to fail, obtaining confidential information, something that big business just can't do without - high risk but at the same time high return work.

"Here is my business card. Please call me anytime with more information," said the reporter.

What are the business hours?

There was some monkey business going on when they were negotiating that last contract; money passed under the table.