1. The exchange of goods and services among individuals and businesses in multiple Countries.
2.A specific entity, such as a multinational corporation or international business company            that engages in business among multiple countries.

Ref: (Business Dictionary (2015) International Business. Retrieved http://www.businessdictionary.com/definition/international-business.html#ixzz3x1tHHF3B on 12/01/2016)