Ask is the price a stock, commodity or currency pair is offered in the market.
The price at which a currency pair or security is offered for sale; the quoted price at which an investor can buy a currency pair. This is also known as the 'offer', 'ask price', and 'ask rate'.
This price is set by a market maker, the trading system of the broker or other investors who have a limit order in the market. How the ask price is set depends on which type of exchange and the market trading happens on.