D

The Semitic letter Dāleth may have developed from the logogram for a fish or a door. There are many different Egyptian hieroglyphs that might have inspired this. In Semitic, Ancient Greek and Latin, the letter represented ; in the Etruscan alphabet the letter was archaic but still retained. The equivalent Greek letter is delta, Δ. ==Use in writing systems==

English In English, generally represents the voiced alveolar plosive . The letter is the tenth most frequently used in the English language. Other languages for "Germany"), on a boundary stone at the border between Austria and Germany. In most languages that use the Latin alphabet, generally represents the voiced alveolar or voiced dental plosive . In the Vietnamese alphabet, it represents the sound in northern dialects or in southern dialects. In Fijian, it represents a prenasalized stop . In some languages where voiceless unaspirated stops contrast with voiceless aspirated stops, represents an unaspirated , while represents an aspirated . Examples of such languages include Icelandic, Scottish Gaelic, Navajo and the pinyin transliteration of Mandarin. Other systems In the International Phonetic Alphabet, represents the voiced alveolar plosive . ==Other uses==

• In the hexadecimal (base 16) numbering system, D is a number that corresponds to the number 13 in decimal (base 10) counting. • The Roman numeral D represents the number 500. • Unit prefix d, meaning one tenth. • D is the grade below C but above E/F in the school grading system. • D is the international vehicle registration code for Germany (also .de as its top-level domain). • In Cantonese: Because the lack of Unicode CJK support in early computer systems, many Hong Kongers and Singaporeans used the capitalized D to represent . • In the Gregory-Aland system for cataloging Biblical manuscripts, D can refer to documents in the Western text-type tradition, either Codex Bezae or Codex Claromontanus. • d. is the standard abbreviation for the Penny (British pre-decimal coin) (from ) ==Related characters==

Descendants and related characters in the Latin alphabet • Ɖ ɖ : African D • Ð ð : Latin letter Eth • D with diacritics: Đ đ Ꟈ ꟈ Ɗ ɗ Ḋ ḋ Ḍ ḍ Ḑ ḑ Ḓ ḓ Ď ď Ḏ ḏ • Phonetic symbols related to D: • Symbols related to D used in the IPA: • Symbols related to D used in the Uralic Phonetic Alphabet: • Superscript IPA letters: 𐞋 𐞌 𐞍 • Other phonetic symbols related to D: ȡ ᵭ ᶁ ᶑ • Ꝺ ꝺ: Insular D is used in various phonetic contexts Ancestors and siblings in other alphabets • 𐤃: Semitic letter Dalet, from which the following symbols originally derive: • Δ δ: Greek letter Delta, from which the following symbols originally derive: • : Coptic letter Delta • Д д: Cyrillic letter De • 𐌃: Old Italic D, the ancestor of modern Latin D • : Runic letter dagaz, which is possibly a descendant of Old Italic D • : Runic letter thurisaz, another possible descendant of Old Italic D • : Gothic letter daaz, which derives from Greek Delta Derived signs, symbols and abbreviations • ₫: Đồng sign • ⅆ: Unicode symbol for d used as derivative symbol • ∂: the partial derivative symbol, \partial ==Other representations==

Computing The Latin letters and have Unicode encodings and . These are the same code points as those used in ASCII and ISO 8859. There are also precomposed character encodings for and with diacritics, for most of those listed above; the remainder are produced using combining diacritics. Variant forms of the letter have unique code points for specialist use: the alphanumeric symbols set in mathematics and science, plosive sounds in linguistics and halfwidth and fullwidth forms for legacy CJK font compatibility. Other 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==