verb

• (intransitive) To become invisible or to move out of view unnoticed.
  "Holly, mistletoe, red berries, ivy, turkeys, geese, game, poultry, brawn, meat, pigs, sausages, oysters, pies, puddings, fruit, and punch, all vanished instantly."
• (mathematics) To become equal to zero.
  "The function f such as f(x)#61;x² vanishes at x#61;0."
• (transitive) To disappear; to kidnap.
  "And as if to prove it, one of his friends was vanished and was never seen again. The guy got in a taxi one night, and no one ever saw him ever again."

noun

• (phonetics) The brief terminal part of a vowel or vocal element, differing more or less in quality from the main part.
  "a as in ale ordinarily ends with a vanish of i as in ill."