Placeholder may refer to:
Language
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Placeholder name
Placeholder names are intentionally overly generic and ambiguous terms referring to things, places, or people, the names of which or of whom do not actually exist; are temporarily forgotten, or are unimportant; or in order to avoid stigmat ...
, a term or terms referring to something or somebody whose name is not known or, in that particular context, is not significant or relevant.
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Filler text, text generated to fill space or provide unremarkable and/or standardised text.
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Lorem ipsum
''Lorem ipsum'' ( ) is a dummy or placeholder text commonly used in graphic design, publishing, and web development. Its purpose is to permit a page layout to be designed, independently of the copy (publishing), copy that will subsequently pop ...
, a standard Latin text most commonly used to demonstrate a font, typography or layout.
Mathematics and computer science
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Free variable
In mathematics, and in other disciplines involving formal languages, including mathematical logic and computer science, a variable may be said to be either free or bound. Some older books use the terms real variable and apparent variable for f ...
, a symbol subsequently replaced by a value or string.
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Interpoled variable of a ''string interpolation'' process.
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Metasyntactic variable
A metasyntactic variable is a specific word or set of words identified as a placeholder in computer science and specifically computer programming. These words are commonly found in source code and are intended to be modified or substituted before ...
, a placeholder name (see above) as used in computer science.
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Format placeholder, used in computing to format strings within print functions (
printf).
Other uses
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Line stander
A line stander, queue stander, line sitter or queue professional is a person who takes a position in a queue in place of another, often for payment. This informal occupation came to an existence out of the necessity to stand long times in queues. ...
, a person standing in a queue for another.
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Placeholder (politics), a person temporarily appointed to an office that would otherwise remain vacant.
See also
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Filler (disambiguation)
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Spacer (disambiguation)
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Stand-in
A stand-in, sometimes a lighting double, for film and television is a person who substitutes for the actor before filming, for technical purposes such as lighting and camera setup.
Stand-ins are helpful in the initial processes of film and tele ...
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Substitute (disambiguation)
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Stadtholder
In the Low Countries, a stadtholder ( ) was a steward, first appointed as a medieval official and ultimately functioning as a national leader. The ''stadtholder'' was the replacement of the duke or count of a province during the Burgundian and ...
{{disambiguation