The spot price of something refers to the current price it can be bought at. This price is used to determine the pricing for some futures contracts.
When a futures contract is priced at the spot price, it is called a spot contract. This means the purchaser will pay based on the current price for goods they will receive at contract expiry. In contrast, a forward contract is a futures contract where the terms are agreed upon now, but the price payed will be the spot price at time of contract expiration.