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Rally - A recovery in price after a period of decline.
Range - The difference between the highest and lowest price of a future recorded during a given trading session.
Rate - The price of one currency in terms of another, typically used for dealing purposes.
Resistance - A term used in technical analysis indicating a specific price level at which analysis concludes people will sell.
Revaluation - An increase in the exchange rate for a currency as a result of central bank intervention. Opposite of Devaluation.
Risk - Exposure to uncertain change, most often used with a negative connotation of adverse change.
Risk Management - the employment of financial analysis and trading techniques to reduce and/or control exposure to various types of risk.
Roll-Over - Process whereby the settlement of a deal is rolled forward to another value date. The cost of this process is based on the interest rate differential of the two currencies.
Round trip - Buying and selling of a specified amount of currency.