DD

See also: Appendix:Variations of "dd"

Translingual

Etymology 1

Alternative forms

• dd, M, m, Ⅿ, ⅿ, CIƆ, ↀ, Ⅰ̅, ⅰ̅, ⅭⅠↃ

Number

DD

1. (informal) A Roman numeral representing thousand (1000).

See also

• Previous: DID (999)
• Next: DDI (one thousand and one, 1001)

Etymology 2

From German Deutsche Demokratische Republik.

Symbol

DD

2. (international standards, obsolete) Former ISO 3166-1 alpha-2 country code for East Germany from 1974 to 1990.

   Synonym: DDR (alpha-3)

Usage notes

• The code was deprecated in favour of DE on the reunification of Germany.

Coordinate terms

• DE (formerly West Germany)

Etymology 3

Symbol

DD

1. (finance) Long-term bond credit rating by Fitch Ratings, indicating that a bond is in default, with little prospect of debt recovery.
2. (clothing) Bra cup size.
3. (IUCN Red List) Abbreviation of English data deficient.
4. (medicine) Initialism of English developmental disability.

English

English Wikipedia has an article on:

DD

Wikipedia

Pronunciation

• IPA^(key): /ˌdiː ˈdiː/

• Audio (US):

  (file)

Noun

DD (countable and uncountable, plural DDs)

1. Initialism of designated driver.
   • 2024 August 6, Gena Kaufman, “33 Rainy-Day Date Ideas That Aren’t Another Movie”, in Glamour‎:

     Got a craft brewery, distillery, winery, in your area? See if they have any available tours or tastings that day, or make a day of hopping between them (just have Uber be your DD).

2. Initialism of discharged dead: official designation of a sailor killed in combat.
3. Initialism of direct debit.
4. Initialism of deficit disorder.
5. Initialism of doctor of divinity.
6. (computing) Initialism of Debian developer.
7. (sports) Initialism of degree of difficulty.
8. (US, military, nautical) Abbreviation of destroyer, a type of warship.
9. (automotive) Initialism of daily driver: a vehicle which is used for everyday commuting, unlike a weekend warrior / Sunday Funday vehicle.
10. Initialism of dual diagnosis.
11. Initialism of demand draft.
12. (vulgar, in the plural) A breast of cup size DD.
13. (Internet) Initialism of direct download.
14. Initialism of decimal degrees (“decimalized instead of sexagesimal values for arcdegrees”).
15. Abbreviation of daddy dom in DD/LG kink.
    • 2019, Cassandra Dee, Daddy's Pretty Baby: A DD/lg Forbidden Romance:

      ABOUT THIS BOOK […] Hey Readers – Warning: This is a sexy, over the top romance with two folks engaged in age play and the DD/lg lifestyle.

16. Initialism of due diligence.
17. Initialism of delivery date.
18. Initialism of dear/darling daughter.
19. (military) Initialism of dishonorable discharge.

Proper noun

DD

1. Initialism of Dadra and Nagar Haveli and Daman and Diu: a union territory of India.
2. Initialism of Daman and Diu: a former union territory of India.
3. (India, broadcasting) Abbreviation of Doordarshan, a state public broadcaster of India.
4. Initialism of Dunkin' Donuts.
   • 2008 January 27, “Comments: February 4, 2008”, in New York‎, New York, N.Y.: New York Media, →ISSN, →OCLC, archived from the original on 30 January 2008:

     → “The DD lattes are great, but the drip is BLECH!” → “They both suck. But coffee ALWAYS tastes better with a DD chocolate glazed doughnut than with a Starbucks ‘scone.’”

   • 2009 July 14, Julia Moskin, “After the Doughnuts, Coffee”, in The New York Times‎, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 16 July 2009:

     We’re well aware that many people think Dunkin’ Donuts serves good coffee. Yes, it’s smooth (unlike much cheap coffee), but admit it: DD coffee sorely lacks coffee flavor.

   • 2009 August 7, Farley Katz, “Combination Food”, in The New Yorker‎, New York, N.Y.: Condé Nast Publications, →ISSN, →OCLC, archived from the original on 14 September 2014:

     (Those in the know will tell you that even though Tim Hortons has invaded from the North, replacing a Dunkin’ Donuts, there exists a “secret” menu that allows you to order the good old-fashioned American donuts of yesteryear. Just ask for a Nathan’s footlong “animal-style,” and you’ll get a DD bear claw in a black plastic bag.)

   • 2011 May 11, Rene Lynch, “First stop in Sin City? Dunkin’ Donuts”, in Los Angeles Times‎, Los Angeles, Calif.: Los Angeles Times Communications, →ISSN, →OCLC, archived from the original on 28 October 2025:

     If we were on the road, I had a large Dunkin’ Donuts coffee in the cupholder. In four days, we racked up six DD stops. […] Farewell, DD, until my next trip to Vegas.

Adjective

DD

1. Initialism of developmentally disabled.

Alternative forms

• (Internet): DDL

Coordinate terms

• retarded
• slow

Coordinate terms

• (decimal degrees): DMS, HMS, gradian, radian, mil

Japanese

Pronunciation

• IPA^(key): [dʲiːdʲiː]

Noun

DD(ディーディー) • (dīdī) 

1. (often offensive, idol fandom) initialism of 誰でも大好き (daredemo daisuki, “love everyone”)
2. (Internet slang) initialism of どっちもどっち (dotchi mo dotchi, “neither is great”)

Norwegian Bokmål

Alternative forms

• dd
• d.d.

Etymology 1

Short form of Norwegian dag (“day”), from Old Norse dagr (“day”), from Proto-Germanic *dagaz (“day”), from Proto-Indo-European *dʰegʷʰ- (“to burn, to be illuminated”).

Pronunciation

• IPA^(key): /deːdeː/, /dɑːɡ/

• Audio:

  (file)

• Audio:

  (file)

• Rhymes: -eː, -ɑːɡ
• Hyphenation: DD
• Homophones: dd, dag

Noun

DD

1. alternative spelling of dd

Related terms

• ddmmåå (“ddmmyy”), ddmmåååå (“ddmmyyyy”), DDMMÅÅ (“DDMMYY”), DDMMÅÅÅÅ (“DDMMYYYY”), dd/mm/åå (“dd/mm/yy”), dd/mm/åååå (“dd/mm/yyyy”), DD/MM/ÅÅ (“DD/MM/YY”), DD/MM/ÅÅÅÅ (“DD/MM/YYYY”)

See also

• mm (“mm”), åå (“yy”), åååå (“yyyy”)

Etymology 2

Short form of Norwegian datamangel (“data deficiency”), first part data (“data”) from Latin data, plural of datum (“gift, present”), neuter past participle of dō (“I give, offer”), from Proto-Italic *didō (“give”), from Proto-Indo-European *dédeh₃ti (“to be giving”), from *deh₃- (“give”). Last part mangel (“lack, absence, deficiency”) from German Mangel (“lack, deficiency”), from mangeln (“to lack”), from Old High German mangolōn, from Latin mancare.

Pronunciation

• IPA^(key): /deːdeː/, /ˈdɑːtamaŋəl/

• Audio:

  (file)

• Audio:

  (file)

• Rhymes: -eː, -əl
• Hyphenation: D‧D
• Homophones: dd, datamangel

Noun

DD

1. (Norwegian Red List for Species) abbreviation of datamangel (“data deficiency”)

Etymology 3

Short form of Norwegian dobbel-dobbel (“double-double”).

Pronunciation

• IPA^(key): /deːdeː/, /ˈdɔbːəl.dɔbːəl/

• Audio:

  (file)

• Audio:

  (file)

• Rhymes: -eː, -əl
• Hyphenation: D‧D
• Homophones: dd, dobbel-dobbel

Noun

DD

1. (basketball) abbreviation of dobbel-dobbel (“double-double”)

Etymology 4

Short form of Norwegian D-dag and D-dagen ("D-Day"), both from English D-Day, where the D refers to the word dag (“day”), from Old Norse dagr (“day”), from Proto-Germanic *dagaz (“day”), from Proto-Indo-European *dʰegʷʰ- (“to burn, to be illuminated”).

Pronunciation

• IPA^(key): /deːdeː/, /ˈdeːdɑːɡ/, /ˈdeːdɑːɡn̩/

• Audio:

  (file)

• Audio:

  (file)

• Audio:

  (file)

• Rhymes: -eː, -ɑːɡ, -ɑːɡn̩
• Hyphenation: D‧D
• Homophones: dd, D-dag, D-dagen

Noun

DD

1. (figuratively) abbreviation of D-dag (“D-Day”)
2. (historical) abbreviation of D-dagen (“D-Day”)

Etymology 5

First initials of the name Donald Duck (“Donald Duck”).

Pronunciation

• IPA^(key): /deːdeː/, /ˈduːnɑl.dʉk/

• Audio:

  (file)

• Audio:

  (file)

• Rhymes: -eː, -ʉk
• Hyphenation: D‧D
• Homophones: dd, Donald Duck

Proper noun

DD

1. initialism of Donald Duck