"Foreign currency" refers to the money used in a different country than where you currently are. It is the type of money that you would need to use if you are traveling or doing business in another country. Full definition
Cash involved in foreign currency exchange trades is not covered. (wisemoneytips.com)
In the long run, the most important driver of foreign currency exchange rate is inflation. (financialtrading.com)
The fact that they don't charge extra for foreign currency transactions is an important feature, and one not mentioned in the article. (everywhereonce.com)