Mainnet - is the term used to describe when a blockchain protocol is fully developed and deployed
Market Order - is an order to buy or sell immediately. This type of order guarantees that the order will be executed, but does not guarantee the execution price. A market order generally will execute at or near the current buy or sell price. However, it is important to remember that the current trade price is not necessarily the price at which a market order will be executed.
Slippage - refers tothe difference between the expected price of a trade and the price at which the trade is executed. Slippage can occur at any time but is most prevalent during periods of higher volatility when market orders are used