verb (used without object)

  1. to disappear from sight, especially quickly; become invisible: The frost vanished when the sun came out.
  2. to go away, especially furtively or mysteriously; disappear by quick departure: The thief vanished in the night.
  3. to disappear by ceasing to exist; come to an end: The pain vanished after he took an aspirin.
  4. Mathematics. (of a number, quantity, or function) to become zero.

verb (used with object)

  1. to cause to disappear.


  1. Phonetics. the last part of a vowel sound when it differs noticeably in quality from the main sound, as the faint (ē) at the end of the (ā) in the pronunciation of pain.

verb (intr)

  1. to disappear, esp suddenly or mysteriously
  2. to cease to exist; fade away
  3. maths to become zero


  1. phonetics rare the second and weaker of the two vowels in a falling diphthong

c.1300, from shortened form of stem of Old French esvanir “disappear,” from Vulgar Latin *exvanire, from Latin evanescere “disappear, die out,” from ex- “out” (see ex-) + vanescere “vanish,” from vanus “empty” (see vain). Related: Vanished; vanishing. Vanishing point in perspective drawing is recorded from 1797.

see under into thin air.

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