There are 3 definitions of D in English:

D1

Line breaks: D
Pronunciation: /diː
 
/
(also d)

noun (plural Ds or D's)

  • 1The fourth letter of the alphabet.
    More example sentences
    • Each half resembles a uppercase letter D, so the two parts of the cyclotron are known as dees.
  • 1.1Denoting the fourth in a set of items, categories, sizes, etc..
  • 1.2The fourth-highest category of academic mark.
  • 1.3 (d) Chess Denoting the fourth file from the left, as viewed from White’s side of the board.
  • 1.4Denoting the second-lowest-earning socio-economic category for marketing purposes, including semi-skilled and unskilled personnel.
  • 2 (D) (also dee) A shape like that of a capital D: [in combination]: the D-shaped handle
  • 2.1A loop or ring in the shape of a capital D: a saddle with stainless steel dees
  • 2.2 (D) A semicircle marked on a billiard table in the baulk area, with its diameter part of the baulk line, within which a player must place the cue ball when breaking off or restarting from hand.
  • 3 (usually D) Music The second note of the diatonic scale of C major.
  • 3.1A key based on a scale with D as its keynote.
  • 4The Roman numeral for 500.
    [understood as half of CIƆ, an earlier form of M (= 1,000)]

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Word of the day grotesquerie
Pronunciation: grəʊˈtɛskəri
noun
grotesque quality or grotesque things collectively

There are 3 definitions of D in English:

D2

Line breaks: D
Pronunciation: /diː
 
/

abbreviation

  • 1(In the US) Democrat or Democratic: Delaware: breakdown of outgoing Senate: 13 D, 8 R
  • 1.1Depth (in the sense of the dimension of an object from front to back): H 35 cm × W 50 cm × D 20 cm
  • 1.2 Chemistry Dextrorotatory: D-glucose
  • 1.3(With a numeral) dimension(s) or dimensional: a 3-D model
  • 1.4(In tables of sports results) drawn.
  • 1.5(On an automatic gear shift) drive.
  • 1.6Germany (international vehicle registration).
    [from German Deutschland]

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  • 1 Physics Electric flux density.
  • 1.1 Chemistry The hydrogen isotope deuterium.

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There are 3 definitions of D in English:

d

Line breaks: d
Pronunciation: /diː
 
/

abbreviation

  • 1(In genealogies) daughter: Henry m. Georgina 1957, 1s 2d
  • 1.1Day(s): orbital period (Mars): 687.0 d
  • 1.2 [in combination] (In units of measurement) deci-.
  • 1.3(In travel timetables) departs: Plymouth d 0721
  • 1.4 (d.) Died (used to indicate a date of death): Barents, Willem (d.1597)
  • 1.5British Penny or pence (of pre-decimal currency): £20 10s 6d
    [from Latin denarius 'penny']
  • 1.6 Chemistry Denoting electrons and orbitals possessing two units of angular momentum: d-electrons
    [d from diffuse, originally applied to lines in atomic spectra]

symbol

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  • 1 Mathematics Diameter: the circumference of a circle is expressed by the formula πd
  • 1.1 Mathematics Denoting a small increment in a given variable: dy/dx

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