The noun "business" can be both countable and uncountable.
Meaning: the activity of making, buying or selling things for money
Example sentence: I'm good at inventing things, but I'm not very good at doing business.
Meaning: a particular company or other commercial organisation
Example sentence: My cousin wants me to invest in a small business he's starting.
Test your understanding:
- Ben's advertising business has been very successful.
- He's given me some tips on how to succeed in business.