Appreciated means an increase in the value of an asset over time. In finance, this often refers to the rise in value of a currency compared to other currencies.
Depreciated: A decrease in the value of an asset or currency over time.
Exchange Rate: The rate at which one currency can be exchanged for another.
Interest Rate Parity: A theory stating that differential interest rates between two countries are equal to the differential between forward exchange rates and spot exchange rates.