How to define Global business?

Actually , I didn’t work in this field before and I don’t have  required experience , may be Mr. Pedro Brites can answer this question well , I am sorry

In my opinion Global business refers to international trade whereas a global business is a company doing business across the world.

Thanks < any thing you get from it,s profit

Any activity that seeks to provide goods and services to others across national borders while operating at a profit .such as :

exporting

importing

free trade

I fully agree with the answers been added by EXPERTS............Thanks. 

In addition to Mr. Shadi's answer, I would say that a Global Business could be defined as a corporate or economic activity that takes place across different countries !

Thank You