Activity undertaken as part of a commercial enterprise(noun)
WordNet. Princeton University. 2010.
Use "business activity" in a sentence
"But some of the highest-leverage work that government can do is to set policy and disburse funds in ways that create market incentives for business activity that improves the lives of the poor."
"With our rapid successes, which will try the brain of the stoutest, and our as sudden reverses, toppling in a day the stateliest pile that energy and opportunity can rear, what must be the wear and tear of that central force, which is at once the driving-wheel and motive power of our business activity -- the nervous system?"
"Choose a business activity such as timber or animal breeding, showing, training, or racing, which requries that you show a profit in only two out of seven consecutive years."