D

n. musical note

n. fourth letter of the English alphabet

For the emoticon :D, see Emoticon. (For technical reasons, :D' brings you here.) D is the fourth letter in the Latin alphabet. Its name in English is spelled dee or occasionally de .
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The +D (or Plus D) was a floppy disk and printer interface for the Sinclair ZX Spectrum home computer, developed as a successor to Miles Gordon Technology's earlier product, the DISCiPLE. It was designed to be smaller, cheaper, simpler and thus more reliable.It discarded a number of the less important features of the earlier product — the network and joystick ports, the inhibit button and the pass-through connector — and replaced its ancestor's plastic wedge-shaped design which fit under the Spectrum with a simple flat metal slab which protruded from the rear of the computer.
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A caron ( ˇ ) or háček (pronounced ; ), also known as a wedge, inverted circumflex, inverted hat, is a diacritic placed over certain letters to indicate present or historical palatalization, iotation, or postalveolar pronunciation in the orthography of some Baltic, Slavic, Finno-Lappic, and other languages.
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Đ (lowercase đ) is a letter of the Latin alphabet, formed from D with the addition of a bar or stroke through the letter. This is the same modification that was used to create eth (ð), but eth is based on an insular variant of d while đ is based on its usual upright shape. Đ is part of the alphabets of several languages, as well as being used in linguistics as a phonetic symbol.
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D+ can refer to:D+ (indie rock band), based in Anacortes, WashingtonDigital+, a Spanish satellite television platform
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D- means:Placed before a U.S. state, usually in parentheses, indicates the person it applies to is a Democratic Party politician of that state. "R-" is used for the Republican Party.An academic grade given by certain institutions. Slightly better than an F+ and slightly worse than a D. See Grade (education).
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Detlef Soost (* July 2 1970 in Berlin-Pankow, GDR), also using the name D! (formerly Dee!), most often called Detlef D. Soost or Herr Soost, is a German dancer and choreographer.
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Don, from Latin dominus, is a Spanish (pron. ) and Portuguese (''Dom'', ) honorific title. It is usually used as a mark of high esteem for a distinguished Christian hidalgo or fidalgo; that is, a nobleman. In English "Don" is usually preceded by a definite article ("the").Its abbreviation, particularly in Portuguese, is "D." It is still used in reference to priests, like the French Dom. The treatment was reserved for those who had royal or some higher old noble ancestry, as well as some title bearers who had their title without needing but the King's confirmation instead of authorization, the so called titles de Juro e Herdade. In Brazil it was not used in reference to nobles, but was used to refer to royals (both to the monarch and to princes), and, in the ranks of the clergy, it is only used to refer to Bishops or other senior ecclesiastical hierachs.
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A portmanteau of emotion and icon, an emoticon is a symbol or combination of symbols used to convey emotional content in written or message form. Some examples of text-based emoticons include: :-) :-( ;-)
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D dalton ; deciduous ; density ; deuterium ; died; diopter ; distal ; dorsal vertebrae ; dose ; duration. d day; deci- ; deoxyribose. [more]D - Community and Resources

Noun
1. a fat-soluble vitamin that prevents rickets
(synonym) vitamin D, calciferol, viosterol, ergocalciferol, cholecarciferol
(hypernym) fat-soluble vitamin
(substance-meronym) ergosterol
2. the cardinal number that is the product of one hundred and five
(synonym) five hundred, 500
(hypernym) large integer
3. the 4th letter of the Roman alphabet
(hypernym) letter, letter of the alphabet, alphabetic character
(member-holonym) Roman alphabet, Latin alphabet

Adjective
1. denoting a quantity consisting of 500 items or units
(synonym) five hundred, 500
(similar) cardinal

n. D, musical note