Evaporation is the physical process of converting solid to gas.
condensation
The physical process of converting liquid to gas is called evaporation.
Sublimation is the transition of a substance directly from the solid to the gas phase without undergoing the liquid phase.
The change of a gas or vapour to a liquid by cooling is called condensation. Melting is defined as a physical process that results in the phase transition of a substance from a solid to a liquid.