boil [boiled, boiling, boils](begin to turn into a gas) verb [UK: bɔɪl] [US: ˌbɔɪl]
evaporate [evaporated, evaporating, evaporates]((transitive or intransitive) to transition from a liquid state into a gaseous state) verb [UK: ɪ.ˈvæ.pə.reɪt] [US: ɪ.ˈvæ.pə.ˌret]