A miracle is an out-of-the-ordinary direct and divine intervention in the world. Examples would be the parting of the Red Sea, Jesus walking on water, the resurrection of Lazarus, etc. Some hold that it is a violation of the natural order of physical laws. Others maintain that there is no such violation upon God's part but only a natural manifestation of His work.
They are also known as powers and signs (Mark 9:39, Acts 2:22, 19:11) and mighty works (John 10:25-28). They are a manifestation of the power of God over nature (Joshua 10:12-14), animals (Num. 22:28), people (Gen. 19:26), and illness (2 Kings 5:10-14). They are produced by God's power (Acts 15:12), Christ's power (Matt. 10:1), and the Holy Spirit's power (Matt. 12:28).