• the act of leaving secretly or without explanation
  • the event of passing out of sight
  • gradually ceasing to be visible
  • ceasing to exist;
    • "he regretted the disappearance of Greek from school curricula"
    • "what was responsible for the disappearance of the rainforest?"
    • "the disappearance of resistance at very low temperatures"

disappearance is not a valid Scrabble word

disappearance is not valid in Words With Friends