Other contributors have said "What are bid and ask amounts with equities?" is the same question as "What are bid and ask prices?". If you believe that these are not asking the same thing and should be answered differently, click here.
Bid is the highest price someone is offering to buy the securities for at a given point in time.
Ask is the lowest price someone is offering to sell the securities for at a given point in time.
When placing a trade you would typically be buying at the ask price and selling for the bid price.