The two currencies that make up a foreign exchange rate. For example, USD/YEN is a currency pair.
Two currencies involved in a FOREX transaction. For example: EUR/USD.
Two currencies involved in a FOREX transaction – e.g. EUR/USD.
Exchange rate relationship between two currencies, where one currency is expressed in terms of the other. For example, USD-EUR (US dollar against Euro) is a currency pair.
See on: Wikipedia Investopedia The quotation and pricing structure of the currencies traded in the Forex Market: the value of a currency is determined by its comparison to another currency. The first currency of a currency pair is called the "base currency", and the second currency is called the "quote currency". The currency pair shows how much of the base currency can be purchased with one unit of the quote currency.
A currency pair depicts a quotation of two different currencies. The first currency in the pair is the base currency. The second currency in the pair is labeled counter currency.