Volatize refers to the action of converting a substance into a gas. There are several synonyms for this word that can be used depending on the context of the sentence. These include vaporize, evaporate, dissipate, and sublimate. Vaporize implies the conversion of liquid into gas through heat, while evaporate suggests the changing of a liquid state to a gaseous one. Dissipate signifies the spreading out of something into the atmosphere or dispersing into thin air. Lastly, sublimate refers to the process of solid materials converting into a gas state without undergoing the liquid phase. All these synonyms essentially convey the same meaning as volatize.