The term 'TURN FROM ICE TO WATER' can be summarized by the crossword solution 'MELT, ' which is a four-letter word. Melting is a physical process in which a solid substance transitions from a solid state to a liquid state. This process is caused by an increase in temperature, which causes the molecules of the solid to move faster and break apart, allowing them to flow freely. In the case of ice turning to water, the melting point of ice is 0°C, so when the temperature rises above this point, the ice will begin to MELT.