what is PIP ?

In the Forex market, prices are quoted in pips. Pip stands for "percentage in point" and is the fourth decimal point, which is 1/100th of 1%.

In EUR/USD, a 3 pip spread is quoted as 1.2500/1.2503

Among the major currencies, the only exception to that rule is the Japanese yen. In USD/JPY, the quotation is only taken out to two decimal points (i.e. to 1/100 th of yen, as opposed to 1/1000th with other major currencies).

In USD/JPY, a 3 pip spread is quoted as 114.05/114.08
The smallest price increment in a currency, so instead of a point like in stocks, in the forex market it is called a pip.