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• dd
  dd

  abbreviation

  today's date.
• DD
  DD

  abbreviation

  data deficient.
• dd.
  dd.

  abbreviation

  delivered.
• D/D
  D/D

  abbreviation

  days after date.
• D.D.
  D.D.

  abbreviation

  demand draft.

dd

¹ American  

abbreviation

1. Law. today's date.

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dd ² American  

abbreviation

1. degree-day.

2. delayed delivery.

3. delivered.

4. demand draft.

5. double-deck.

6. Shipbuilding. dry dock.

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DD ³ American  

abbreviation

1. Biology, Ecology. data deficient.

2. damage dealer: (in a video game) a category of job classes in a role-playing game, best suited to inflict large amounts of damage to an enemy: Also DPS

   If you need a DD, I have a level 49 Warrior, or a level 45 Hunter—if a ranged attack would be better.

3. dear/darling daughter (used, especially by women, in digital communications to refer to one's daughter).

   DD moving into her own apt today!

4. designated driver.

5. Department of Defense.

6. dishonorable discharge.

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dd. ⁴ American  

abbreviation

1. delivered.

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D/D ⁵ American  

abbreviation

Commerce.

1. days after date.

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D.D. ⁶ American  

abbreviation

1. demand draft.

2. Doctor of Divinity.

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DD British  

abbreviation

1. Also: dd. direct debit

2. Doctor of Divinity

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Etymology

Origin of dd

From Latin dē datō

Example Sentences

See Examples For:

dd DD D.D.

The author does not think much of this simple "dd reaction."

From Time Magazine Archive

Thus, if we indicate the dominant character by D and the recessive by d, the constitution of the two individuals is Dd and dd.

From Hormones and Heredity by J. T. Cunningham

In a furnace with lateral fire-place, cc are the heating cylinders, and dd the cooling cylinders.

From Scientific American Supplement, No. 288, July 9, 1881 by Various

The gametes they produce are D+d and d+d, and the fertilisations are therefore Dd, Dd, dd, dd, or heterozygote dominants and pure recessives in equal numbers.

From Hormones and Heredity by J. T. Cunningham

Consonantal assimilation of nk to kk, mb to bb, mp to pp, ðl to ll, zd and rd to dd, corresponding to similar assimilation in Scand.

From Scandinavian influence on Southern Lowland Scotch by George Tobias Flom

Carrickfergus man Dylan Todd, known in the ring as DD Crooks, is among those hoping to turn wrestling into a career.

From BBC ● Sep. 19, 2026

DuPont DD 3.12%increase; up pointing triangle de Nemours reported a higher profit in the second quarter as sales rose across the chemicals and materials company’s segments.

From The Wall Street Journal ● Aug. 4, 2026

DD said most Croatians were "generally friendly", but without the ability to speak the local language, he had struggled to fit in.

From Barron's ● Feb. 16, 2026

DD Cafe didn’t immediately respond to a request for comment.

From Los Angeles Times ● Feb. 9, 2026

DD gently lifts my hands off my ears.

From "The Manifestor Prophecy" by Angie Thomas

Iza later told Saavedra that he thought Zelocchi’s associate, D.D., might have the laptop.

From Los Angeles Times ● Jan. 17, 2025

So, I recently did the second-best thing and read D.D.

From Salon ● Feb. 23, 2023

It was founded in 1969 by His Eminence Archbishop Franzo W. King, D.D., and his wife, the Most Rev. Supreme Mother Marina King, before they possessed such lofty titles.

From New York Times ● Dec. 3, 2021

Amtrak service was temporarily halted in the area, Allison Papson of FOX 5 in Washington, D.D., reported on Twitter.

From Fox News ● Jul. 9, 2021

Before sailing for India he received the degree of D.D. from the university of Oxford.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various