Dot (diacritic)

◌̇  ◌̣
Dot
• U+0307 ◌̇ COMBINING DOT ABOVE
• U+0323 ◌̣ COMBINING DOT BELOW

When used as a diacritic mark, the term dot refers to the glyphs "combining dot above" (◌̇), and "combining dot below" (◌̣) which may be combined with some letters of the extended Latin alphabets in use in a variety of languages. Similar marks are used with other scripts.

Overdot

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

In mathematics and physics, when using Newton's notation the dot denotes the time derivative as in ${\displaystyle v={\dot {x}}}$. In addition, the overdot is one way used to indicate an infinitely repeating set of numbers in decimal notation, as in ${\displaystyle 0.{\dot {3}}}$, which is equal to the fraction 13, and ${\displaystyle 0.{\dot {1}}{\dot {4}}{\dot {2}}{\dot {8}}{\dot {5}}{\dot {7}}}$ or ${\displaystyle 0.{\dot {1}}4285{\dot {7}}}$, which is equal to 17.

Raised dot and middle dot

• In Canadian Aboriginal Syllabics, in addition to the middle dot as a letter, centred dot diacritic, and dot above diacritic, there also is a two-dot diacritic in the Naskapi 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, in Northwestern 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 some Swampy Cree and /y/ in some Northwestern Ojibwe.

Encoding

In Unicode, the dot is encoded 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 (&DiacriticalDot;, &dot;)
• U+18DF CANADIAN SYLLABICS FINAL RAISED DOT

Pre-composed characters: