G7 - The seven leading industrial countries, specifically the U.S., Germany, Japan, France, the UK, Canada, and Italy.

G10 - G7 plus Belgium, Netherlands and Sweden, a group associated with IMF discussions. Switzerland is sometimes peripherally involved.

Gap - Is a mismatch between maturities and cash flows in a bank or individual dealer's position book. Gap exposure is effectively interest rate exposure.

Geopolitical events - "Geopolitical events" are key, international, political, events. These events affect not only the foreign exchange market, but all other markets as well.

Going long - Is the purchase of a stock, commodity, or currency for investment or speculation.

Going short - Is the selling of a currency or instrument not owned by the seller.

Gold standard - The original system for supporting the value of currency issued. Where the price of gold is fixed against the currency, it means that the increased supply of gold does not lower the price of gold but causes prices to increase.

Good until cancelled - This is an instruction to a broker that, unlike normal practice, the order does not expire at the end of the trading day, although normally terminates at the end of the trading month.

Grid - A "grid" is the fixed margin, within which, exchange rates are allowed to fluctuate.

Gross Domestic Product - The total value of a country's output, income, or expenditure produced within the country's physical borders.

Gross National Product - The Gross domestic product plus ?factor income from abroad" - income earned from investment or work abroad.