Long / Going Long
Buying a pair, expecting the base currency to rise against the quote.
Long EURUSD = buying euros, selling dollars. Profit if price rises. The inverse is short. Forex is symmetrical - long a pair is the same trade as short its inverse.
Learn to actually use Long / Going Long.
Definitions are the easy part. The free first five modules put this on a real chart and make you do the work. No card required.