Vanish vs. Disappear

Vanishverb

To become invisible or to move out of view unnoticed.

Disappearverb

(intransitive) To vanish.

Vanishverb

(mathematics) To become equal to zero.

‘The function $f(x)=x^2$ vanishes at $x=0$.’;

Disappearverb

(transitive) To make vanish; especially, to abduct and murder surreptitiously for political reasons.

Vanishnoun

(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.’; ‘o as in old ordinarily ends with a vanish of oo as in foot.’;

Disappearverb

(intransitive) To go away; to become lost.

Vanishnoun

A magic trick in which something seems to disappear.

‘The French drop is a well-known vanish involving sleight of hand.’;

Disappearverb

To cease to appear or to be perceived; to pass from view, gradually or suddenly; to vanish; to be no longer seen; as, darkness disappears at the approach of light; a ship disappears as she sails from port.

Vanishverb

To pass from a visible to an invisible state; to go out of sight; to disappear; to fade; as, vapor vanishes from the sight by being dissipated; a ship vanishes from the sight of spectators on land.

‘The horse vanished . . . out of sight.’; ‘Go; vanish into air; away!’; ‘The champions vanished from their posts with the speed of lightning.’; ‘Gliding from the twilight past to vanish among realities.’;

Disappearverb

To cease to be or exist; as, the epidemic has disappeared.

Vanishverb

To be annihilated or lost; to pass away.

Disappearverb

get lost, especially without warning or explanation;

‘He disappeared without a trace’;

Vanishnoun

The brief terminal part of a vowel or vocal element, differing more or less in quality from the main part; as, a as in ale ordinarily ends with a vanish of i as in ill, o as in old with a vanish of oo as in foot.

Disappearverb

become invisible or unnoticeable;

‘The effect vanished when day broke’;

Vanishverb

get lost, especially without warning or explanation;

‘He disappeared without a trace’;

Disappearverb

cease to exist;

‘An entire civilization vanished’;

Vanishverb

become invisible or unnoticeable;

‘The effect vanished when day broke’;

Disappearverb

become less intense and fade away gradually;

‘her resistance melted under his charm’;

Vanishverb

pass away rapidly;

‘Time flies like an arrow’; ‘Time fleeing beneath him’;

Vanishverb

cease to exist;

‘An entire civilization vanished’;

Vanishverb

decrease rapidly and disappear;

‘the money vanished in las Vegas’; ‘all my stock assets have vaporized’;

Vanishverb

disappear suddenly and completely

‘Moira vanished without trace’;

Vanishverb

gradually cease to exist

‘the environment is under threat—hedgerows and woodlands are vanishing’;

Vanishverb

become zero.