D

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This article is about the letter of the alphabet. For other uses, see D (disambiguation).
For technical reasons, "D#" redirects here. For D-sharp, see D♯ (disambiguation).
For technical reasons, ":D" redirects here. For the "very happy face" symbol, see Emoticon.
Cursive.svg
Circle sheer blue 27.gif
Circle sheer blue 33.gif
Cursive script 'd' and capital 'D'
D cursiva.gif

D (named dee /ˈd/[1]) is the fourth letter of the basic modern Latin alphabet.

History[edit]

Egyptian hieroglyph 
door
Phoenician
daleth
Greek
Delta
Etruscan 
D
Roman
D
O31
PhoenicianD-01.png

The Semitic letter Dâlet may have developed from the logogram for a fish or a door. There are various Egyptian hieroglyphs that might have inspired this. In Semitic, Ancient Greek and Latin, the letter represented /d/; in the Etruscan alphabet the letter was superfluous but still retained (see letter B). The equivalent Greek letter is Delta, 'Δ'.[citation needed]

The minuscule (lower-case) form of 'd' consists of a loop and a tall vertical stroke. It developed by gradual variations on the majuscule (capital) form. In handwriting, it was common to start the arc to the left of the vertical stroke, resulting in a serif at the top of the arc. This serif was extended while the rest of the letter was reduced, resulting in an angled stroke and loop. The angled stroke slowly developed into a vertical stroke.

Usage[edit]

The letter D, standing for "Deutschland", i.e. Germany in German, on a boundary stone at the border between Austria and Germany.

In nearly all languages that use the Latin alphabet and the International Phonetic Alphabet 'd' represents the voiced alveolar or voiced dental plosive /d/, but in the Vietnamese alphabet, it represents the sound /z/ (or /j/ in southern dialects). In Fijian it represents a prenasalized stop /nd/.[2] In some languages where voiceless unaspirated stops contrast with voiceless aspirated stops, 'd' represents an unaspirated /t/, while 't' represents an aspirated /tʰ/. Examples of such languages include Icelandic, Scottish Gaelic, Navajo, Estonian and the Pinyin transliteration of Mandarin.

The symbol "D" is used for 500 in Roman numerals.

Related letters and other similar characters[edit]

Computing codes[edit]

Character D d
Unicode name LATIN CAPITAL LETTER D   LATIN SMALL LETTER D
Encodings decimal hex decimal hex
Unicode 68 U+0044 100 U+0064
UTF-8 68 44 100 64
Numeric character reference D D d d
EBCDIC family 196 C4 132 84
ASCII 1 68 44 100 64
1 Also for encodings based on ASCII, including the DOS, Windows, ISO-8859 and Macintosh families of encodings.

Other representations[edit]

NATO phonetic Morse code
Delta –··
ICS Delta.svg Semaphore Delta.svg ⠙
Signal flag Flag semaphore Braille
dots-145

In British Sign Language (BSL), the letter 'd' is indicated by signing with the right hand held with the index and thumb extended and slightly curved, and the tip of the thumb and finger held against the extended index of the left hand.

References[edit]

  1. ^ "D" Oxford English Dictionary, 2nd edition (1989); Merriam-Webster's Third New International Dictionary of the English Language, Unabridged (1993); "dee", op. cit.
  2. ^ Lynch, John (1998). Pacific languages: an introduction. University of Hawaii Press. p. 97. ISBN 0-8248-1898-9. 

External links[edit]

  • Media related to D at Wikimedia Commons
  • The dictionary definition of D at Wiktionary
  • The dictionary definition of d at Wiktionary