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Guillemet

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Guillemets are a specific pair of punctuation marks shaped like sideways double chevrons.

Guillemets in different fonts with italics
Guillemets in different fonts with italics

They function primarily as quotation marks to indicate spoken words or cited text. Some people also use them as ditto marks to show repeated information. Because of their shape, they are often called angle quotation marks or French quotes. In some circles, they are even nicknamed "duckfoot quotes." While they are not standard in English, they are vital tools for many global languages.

Angle brackets and less+greater signs and half guillemets in different fonts
Angle brackets and less+greater signs and half guillemets in different fonts

These marks work through specific orientations that change based on the language being used. In many regions, guillemets point outward, appearing as «like this». This outward direction is used in languages such as French, Italian, and Greek. In French writing, authors often include thin spaces around the marks, though this varies in Switzerland. Other languages use an inward-pointing style, appearing as »like this«. This inward orientation is common in German books and Croatian typography. Some languages, like Finnish, use a right-pointing style, appearing as »like this«. The direction and spacing help readers instantly recognize the structure of a sentence.

Guillemets can also serve as nested quotation marks. This occurs when a person is quoting someone who is already quoting another person. In these cases, writers use single guillemets, which look like « or », to create layers of speech. For example, in Russian, these single marks are often used for nested quotes or in handwritten text. Romanian also uses guillemets specifically to indicate a quotation within a quotation. This layering allows writers to manage complex dialogue without confusing the reader.

Guillemets in different fonts with italics
Guillemets in different fonts with italics

The history of the name is tied to French printing traditions. The term "guillemet" is a diminutive form of the name Guillaume. It is believed to be named after Guillaume Le Bé, a French printer and punchcutter. Le Bé lived from 1525 to 1598, but he did not actually invent these symbols. The marks first appeared in a printed book by Josse Bade in 1527. This shows how names in typography often honor historical figures even if the timing is not exact.

In the digital world, guillemets are defined by specific encoding numbers. They appear in various 8-bit extended ASCII character sets used by computers. In the IBM PC's CP437 system, double guillemets were located at positions 174 and 175. In Mac OS Roman, they were found at positions 199 and 200. Unicode has since inherited these locations and added new spots for single guillemets. Even in right-to-left writing contexts, the characters are mirrored to maintain their proper function.

Angle brackets and less+greater signs and half guillemets in different fonts
Angle brackets and less+greater signs and half guillemets in different fonts

A curious mistake exists within computer history regarding these marks. Both Adobe Postscript and the X Window System misspelled the symbol as "guillemot." A guillemot is actually a type of seabird, not a punctuation mark. Because this misspelling was written into computer file formats, it cannot be easily fixed. This error remains a permanent part of the technical systems used to process symbols. It serves as a reminder of how small typos can become part of a system's permanent structure.

It is important to distinguish guillemets from other similar-looking symbols. They are smaller than angle brackets, which are used in math and linguistics. They are also smaller than the less-than and greater-than signs used in arithmetic. In Chinese, different marks are used to denote the titles of books, films, or newspapers. While they may look similar to the naked eye, each symbol has a distinct role in its specific field.

Angle brackets and less+greater signs and half guillemets in different fonts
Angle brackets and less+greater signs and half guillemets in different fonts

Guillemets connect the worlds of history, linguistics, and computer science. They show how a 16th-century printing tool evolved into a digital character. They demonstrate how different cultures organize their speech through unique visual rules. Whether they are used in a German book or a French newspaper, they provide necessary structure. Understanding these marks helps us see the careful design behind human communication.

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File:Guillemets in different fonts with italics.svg
Guillemets in different fonts with italics.svg
File:Angle brackets and less+greater signs and half guillemets in different fonts.svg
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