vanish in WordNet English dictionary

1. get lost, as without warning or explanation
   "He disappeared without a trace"
   disappear  vanish  go away 
   
2. cease to exist
   "An entire civilization vanished"
   vanish  disappear 
   
3. become invisible or unnoticeable
   "The effect vanished when day broke"
   vanish  disappear  go away 
   
4. pass away rapidly
   "Time flies like an arrow"; "Time fleeing beneath him"
   fly  fell  vanish 
   
5. decrease rapidly and disappear
   "the money vanished in las Vegas"; "all my stock assets have vaporized"
   vanish  fly  vaporize