Spiritual gifts are gifts given by Jesus to His church. Spiritual gifts are discussed in 1 Cor. 12 - 14 and Rom. 12. They vary in degree and nature. There are some that are obviously supernatural in the usage: speaking in tongues, discerning of spirits, healing, etc. There are others that are not so supernatural: administrations, help, admonition, etc.
There is debate over the continuance of the gifts. Some say that the gifts have ceased because we now have the Bible. They argue that the gifts were used for the building of the body of Christ during the beginning of the Christian church when the Bible was not complete. Since the Bible is complete there is no further need for the revelatory gifts like speaking in tongues and the interpretation of tongues. Others maintain that the gifts are all for today though to a lesser degree. There are good arguments on both sides.