1-1a. What exactly is FX?

 "FX" is a transaction that predicts whether the exchange rate will rise or fall, with a profit if the forecast is correct and a loss if the forecast is incorrect. Because you can start trading with both buy and sell orders, you can benefit not only by selling at a higher price than you bought, but also by purchasing back at a cheaper price than you sold.
 

Forex trading, also known as FX or foreign exchange trading, is the decentralized global marketplace where participants exchange one currency for another. The foreign exchange market is the largest and most liquid financial market in the world, with a daily trading volume exceeding $6 trillion