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Dot (diacritic)

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Diacritical mark
This article is about single dot diacritics. For the dot on the letters i and j, seetittle.
◌̇  ◌̣
Dot
  • U+0307 ◌̇COMBINING DOT ABOVE
  • U+0323 ◌̣COMBINING DOT BELOW
This article containsspecial characters. Without properrendering support, you may seequestion marks, boxes, or other symbols.
This page usesIPA notation for orthographic or other linguistic analysis. For the meaning of how⟨ ⟩,| |,/ /, and[ ]are used here, seethis page.

When used as adiacritic mark, the termdot primarily refers to theglyphs "combining dot above" (◌̇), and "combining dot below" (◌̣)which may be combined with someletters of the extendedLatin alphabets in use in a variety of languages. Similar marks are used with other scripts.

Overdot

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Language scripts or transcription schemes that use the dot above a letter as a diacritical mark:

Inmathematics andphysics, when usingNewton's notation the dot denotes thetime derivative as inv=x˙{\displaystyle v={\dot {x}}}. In addition, the overdot is one way used to indicate aninfinitely repeating set of numbers in decimal notation, as in0.3˙{\displaystyle 0.{\dot {3}}}, which is equal to the fraction13, and0.1˙4˙2˙8˙5˙7˙{\displaystyle 0.{\dot {1}}{\dot {4}}{\dot {2}}{\dot {8}}{\dot {5}}{\dot {7}}} or0.1˙42857˙{\displaystyle 0.{\dot {1}}4285{\dot {7}}}, which is equal to17.

Underdot

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"Ị" redirects here; not to be confused withexclamation mark.

Raised dot and middle dot

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InCanadian Aboriginal Syllabics, in addition to themiddle dot as a letter, centred dot diacritic, and dot above diacritic, there also is atwo-dot diacritic in theNaskapi language representing /_w_V/ which depending on the placement on the specific Syllabic letter may resemble a colon when placed vertically,diaeresis when placed horizontally, or a combination of middle dot and dot above diacritic when placed either at an angle or enveloping a small raised letter. Additionally, inNorthwestern Ojibwe, a small raised /wi/ as /w/, the middle dot is raised farther up as either or; there also is a raised dot"Final" (), which represents /w/ in someSwampy Cree and /y/ in some Northwestern Ojibwe.

Side dot

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The diacritics and , known as Bangjeom (방점; 傍點), were used to mark pitch accents inHangul forMiddle Korean. They were written to the left of a syllable in vertical writing and above a syllable in horizontal writing.

Dot above right

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In thePe̍h-ōe-jī orthography ofHokkien, a dot above right is used in the letter to represent the vowel /ɔ/.

Letters with dot

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Encoding

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In Unicode, the dot is encoded as a combining diacritic at:

  • U+0307 ◌̇COMBINING DOT ABOVE

and at:

  • U+0323 ◌̣COMBINING DOT BELOW
  • U+0358 ◌͘COMBINING DOT ABOVE RIGHT
  • U+1DF8 ◌᷸COMBINING DOT ABOVE LEFT

There is also:

  • U+02D9 ˙DOT ABOVE (˙, ˙)
  • U+18DF CANADIAN SYLLABICS FINAL RAISED DOT

The many precomposed characters can be found at theUnicode Consortium website.

See also

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References

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  1. ^abcUnited Nations Group of Experts on Geographical Names (2007).Technical reference manual for the standardization of geographical names(PDF). New York: United Nations. p. 169.ISBN 978-92-1-161500-5.

External links

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In Latin, Cyrillic and Greek
InEarly Cyrillic
InIndic
  •      anusvara 
  •        avagraha 
  •       chandrabindu 
  •   nuqta 
  •              virama 
  •      visarga 
In other scripts
Marks used as diacritics
Non-diacritic uses
InUnicode
Alphabets (list)
Letters (list)
Multigraphs
Digraphs
Trigraphs
Tetragraphs
Pentagraphs
Keyboard layouts (list)
Historical standards
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