Currency Pairs Trading

currency pairs
A currency pair is the quotation of the relative value of a currency unit against the unit of another currency in the foreign exchange market.
are the pairs available to trade.For example in the EUR/USD pair when you open a SELL position it means you sell EUR when at the same time you BUY dollars.

trading
buying or selling securities or commodities
(trade) the commercial exchange (buying and selling on domestic or international markets) of goods and services; "Venice was an important center of trade with the East"; "they are accused of conspiring to constrain trade"
(trade) engage in the trade of; "he is merchandising telephone sets"
The action of engaging in trade