verb (used without object)
to disappear from sight, especially quickly; become invisible: The frost vanished when the sun came out.
to go away, especially furtively or mysteriously; disappear by quick departure: The thief vanished in the night.
to disappear by ceasing to exist; come to an end: The pain vanished after he took an aspirin.
Mathematics. (of a number, quantity, or function) to become zero.
verb (used with object)
to cause to disappear.
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.

1275–1325; Middle English vanisshen, vanissen < Middle French evaniss-, long stem of e(s)vanirLatin ex- ex- + vānēscere to pass away, equivalent to vān(us) vain + -ēscere inchoative suffix

vanisher, noun
vanishingly, adverb
vanishment, noun
nonvanishing, adjective
outvanish, verb (used with object)
unvanishing, adjective

1. evanesce. See disappear.

1. appear. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
vanish (ˈvænɪʃ)
1.  to disappear, esp suddenly or mysteriously
2.  to cease to exist; fade away
3.  maths to become zero
4.  rare phonetics the second and weaker of the two vowels in a falling diphthong
[C14: vanissen, from Old French esvanir, from Latin ēvānēscere to evaporate, from ē-ex-1 + vānēscere to pass away, from vānus empty]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

c.1300, from aphetic form of stem of O.Fr. esvanir "disappear," from V.L. *exvanire, from L. evanescere "disappear, die out," from ex- "out" + vanescere "vanish," from vanus "empty" (see vain). Vanishing point in perspective drawing is recorded from 1797.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Idioms & Phrases


see under into thin air.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Example sentences
Specialties will vanish, teaching positions will shift and disappear.
Any amount you don't claim will vanish from your account and go straight into
  your employer's coffers.
Even well protected species sometimes vanish unexpectedly.
Without a trace, something is causing bees to vanish by the thousands.
Idioms & Phrases
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