The "bid" and "ask" are two of the most fundamental terms you will encounter. The bid is the highest price a buyer is willing to pay for an asset, and the ask is the lowest price a seller is willing to accept. The difference between these two prices is known as the "bid-ask spread."

"Volume" refers to the total number of shares or contracts traded over a specific period, while "liquidity" describes how easily an asset can be bought or sold without a significant price change. High volume and high liquidity are generally desirable for traders as they allow for quick and easy entry and exit from positions.

It's also important to understand the different "types of orders" you can place. A "market order" executes immediately at the current market price, while a "limit order" only executes when the price reaches a specific level you've set.

"Volatility" is a measure of how much an asset's price fluctuates. A high-volatility asset experiences large price swings, which can present both opportunities and risks.