Based on the information provided, here are the correct matches of the words with their definitions:
1. euro
- a monetary unit shared by several nations in Western Europe
2. exchange rate
- the difference in value between two currencies
3. fluctuate
- to be in a constant state of change
4. currency
- government-issued money
By understanding these definitions, you can correctly match each word with its corresponding meaning. The euro is a currency used by multiple countries in Western Europe. An exchange rate represents the value difference between two currencies. When something fluctuates, it means it is constantly changing. Lastly, currency refers to money issued by a government.
