WordNet sense 1 (kill with or as if with a burst of gunfire or electric current or as if by shooting):

zap

WordNet sense 2 (turn into gas):

aerify, gasify, vaporise

WordNet sense 3 (lose or cause to lose liquid by vaporization leaving a more concentrated residue):

evaporate

WordNet sense 4 (decrease rapidly and disappear):

fly, vanish