Virtual vs Void - What's the difference?

As adjectives the difference between virtual and void

is that virtual is in effect or essence, if not in fact or reality; imitated, simulated while void is containing nothing; empty; vacant; not occupied; not filled.

As nouns the difference between virtual and void

is that virtual is (computing) in c++, a virtual member function of a class while void is an empty space; a vacuum or void can be .

As a verb void is

(label) to make invalid or worthless.

virtual

English

(wikipedia virtual)

Alternative forms

* vertual (obsolete) * vertuall (qualifier) * virtuall (obsolete)

Adjective

(-)

In effect or essence, if not in fact or reality; imitated, simulated.

In fact a defeat on the battlefield, Tet was a virtual victory for the North, owing to its effect on public opinion.

Virtual addressing allows applications to believe that there is much more physical memory than actually exists.

* Fleming

A thing has a virtual existence when it has all the conditions necessary to its actual existence.

* De Quincey

to mask by slight differences in the manners a virtual identity in the substance

Having the power of acting or of invisible efficacy without the agency of the material or measurable part; potential.

* Francis Bacon

Heat and cold have a virtual transition, without communication of substance.

* Milton

Every kind that lives, / Fomented by his virtual power, and warmed.

Nearly, almost. (A relatively recent corruption of meaning, attributed to misuse in advertising and media. )

The angry peasants were a virtual army as they attacked the castle.

* 2012 , Chelsea 6-0 Wolves [http://www.bbc.co.uk/sport/0/football/19632463]

The Chelsea captain was a virtual spectator as he was treated to his side's biggest win for almost two years as Stamford Bridge serenaded him with chants of "there's only one England captain," some 48 hours after he announced his retirement from international football.

Simulated in a computer or online.

The virtual world of his computer game allowed character interaction.

Operating by computer or in cyberspace; not physically present.

a virtual''' assistant; a '''virtual personal trainer

(computing, object-oriented programming, of a class member) Capable of being overridden with a different implementation in a subclass.

(physics) Pertaining to particles in temporary existence due to the Heisenberg uncertainty principle.

Synonyms

* de facto

Antonyms

* de jure * legal * real

Derived terms

* virtual reality * virtually

Noun

(en noun)

(computing) In C++, a virtual member function of a class.

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void

English

(wikipedia void)

Etymology 1

From (etyl) vuit'', ''voide (modern vide).

Adjective

(-)

Containing nothing; empty; vacant; not occupied; not filled.

* Bible, Genesis i. 2

The earth was without form, and void .

* Shakespeare

I'll get me to a place more void .

* Massinger

I'll chain him in my study, that, at void hours, / I may run over the story of his country.

Having no incumbent; unoccupied; said of offices etc.

* Camden

divers great offices that had been long void

Being without; destitute; devoid.

* Bible, Proverbs xi. 12

He that is void of wisdom despiseth his neighbor.

Not producing any effect; ineffectual; vain.

* Bible, Isa. lv. 11

[My word] shall not return to me void , but it shall accomplish that which I please.

* Bible, Jer. xix. 7

I will make void the counsel of Judah.

Of no legal force or effect, incapable of confirmation or ratification.

null and void

Containing no immaterial quality; destitute of mind or soul.

* Alexander Pope

idol, void and vain

(computing, programming, of a function or method) That does not return a value.

* 2005 , Craig Larman, Applying UML and patterns

In particular, the roll method is void — it has no return value.

* 2007 , Andrew Krause, Foundations of GTK+ Development

The return value can safely be ignored if it is a void function.

Noun

(en noun)

An empty space; a vacuum.

Nobody has crossed the void since one man died trying three hundred years ago; it's high time we had another go.

* Alexander Pope

Pride, where wit fails, steps in to our defence, / And fills up all the mighty void of sense.

(astronomy) An extended region of space containing no galaxies

(materials science) A collection of adjacent vacancies inside a crystal lattice.

(fluid mechanics) A pocket of vapour inside a fluid flow, created by cavitation.

Synonyms

* pore * bubble

Verb

(en verb)

(label) To make invalid or worthless.

* (1609-1674)

*:It was become a practiceto void the security that was at any time given for money so borrowed.

*(w) (1643-1715)

*:after they had voided the obligation of the oath he had taken

To empty.

To throw or send out; to evacuate; to emit; to discharge.

*:You, that did void your rheum upon my beard, And foot me as you spurn a stranger cur

*(John Webster) (c.1580-c.1634)

*:With shovel, like a fury, voided out / The earth and scattered bones.

*(Isaac Barrow) (1630-1677)

*:a watchful application of mind in voiding prejudices

To withdraw, depart.

*:BY than come in to the feld kynge Ban as fyers as a lyon/ Ha a said kyng Lot we must be discomfyte / for yonder I see the moste valyaunt knyght of the world / and the man of the most renoume / for suche ij bretheren as is kyng Ban & kyng bors ar not lyuynge / wherfore we must nedes voyde or deye

To remove the contents of; to make or leave vacant or empty; to quit; to leave.

* '>citation

*:If they will fight with us, bid them come down, / Or void the field.

Synonyms

* (make invalid or worthless) annul, cancel * evacuate

Etymology 2

Alteration of (voidee).

Noun

(en noun)

* 2011 , Thomas Penn, Winter King , Penguin 2012, p. 68:

Late on the final evening, as the customary ‘void ’ – spiced wine and sweetmeats – was served, more elaborate disguisings in the great hall culminated in the release of a flock of white doves.

Anagrams

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