D

Egyptian hieroglyph  door	Phoenician daleth	Greek Delta	Etruscan  D	Roman D

The Semitic letter Dâlet mey hae developed frae the logogram for a fish or a door. Thare various Egyptian hieroglyphs that micht hae inspired this. In Semitic, Auncient Greek an Latin, the letter representit /d/; in the Etruscan alphabet the letter wis superfluous but still retained (see letter B). The equivalent Greek letter is Delta, 'Δ'.

The minuscule (lawer-case) fairm o 'd' consists o a luip an a taw vertical stroke. It developed bi gradual variations on the majuscule (caipital) form. In haundwritin, it wis common tae stairt the arc tae the left o the vertical stroke, resultin in a serif at the tap o the arc. This serif wis extendit while the rest o the letter wis reduced, resultin in an angled stroke an luip. The angled stroke slawly developed intae a vertical stroke.

In naur aw leids that uise the Latin alphabet an the Internaitional Phonetic Alphabet 'd' represents the voiced alveolar or voiced dental plosive /d/, but in the Vietnamese alphabet, it represents the soond /z/ (or /j/ in soothren dialects). In Fijian it represents a prenasalized stap /nd/.^[2] In some leids whaur voiceless unaspirated staps contrast wi voiceless aspiratit staps, 'd' represents an unaspirated /t/, while 't' represents an aspirated /tʰ/. Examples o sic leids include Icelandic, Scottish Gaelic, Navajo, Estonie an the Pinyin transleeteration o Mandarin.

• Đ đ : Latin letter D wi stroke
• Ɗ ɗ : Latin letter D wi huik
• Ð ð : Latin letter Eth
• Δ δ : Greek letter Delta
• Д д : Cyrillic letter De
• ∂ : the partial derivative seembol, ${\displaystyle \partial }$

¹ An aa for encodings based on ASCII, includin the DOS, Windows, ISO-8859 an Macintosh faimilies o encodings.

NATO phonetic	Morse code
Delta	–··

		[[File:Sign language {{{fingerspelling}}}.svg|90px]]
Seegnal banner	Banner semaphore	American manual alphabet (ASL fingerspellin)	Braille dots-145

In Breetish Sign Leid (BSL), the letter 'd' is indicatit bi signin wi the richt haund held wi the index an thumb extendit an slichtly curved, an the tip o the thumb an finger held against the extendit index o the left haund.

• Media relatit tae D at Wikimedia Commons
• The dictionar defineetion o D at Wiktionary
• The dictionar defineetion o d at Wiktionary