While high volume means that lots of currency pairs are being bought and sold, high volatility means that currency pair prices are moving fast and furious. (fxdayjob.com)
You do not have to put up $ 100,000 to trade a single lot of currency. (investingpr.com)
For instance; a trader who believes the US dollar will increase in value against the Japanese yen would buy lots of the currency pair USD / JPY, which denotes the dollar - yen ratio. (sapling.com)