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dd1

1.
Law. today's date.
Origin
< Latin dē datō

dd2

2.
delayed delivery.
3.
4.
demand draft.
5.
double deck.
6.
Shipbuilding. dry dock.

dd.

1.
delivered.

D/D

Commerce
1.
days after date.

D.D.

1.
demand draft.
2.
Doctor of Divinity.

D&D

1.
Dungeons and Dragons.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for DD

DD

abbreviation
1.
Also dd. direct debit
2.
Doctor of Divinity
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for DD

D.D.

abbreviation of Latin Divinitatis Doctor "Doctor of Divinity."

Online Etymology Dictionary, © 2010 Douglas Harper
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DD in Technology

A Unix copy command with special options suitable for block-oriented devices; it was often used in heavy-handed system maintenance, as in "Let's "dd" the root partition onto a tape, then use the boot PROM to load it back on to a new disk".
dd had a distinctly non-Unixy keyword option syntax reminiscent of IBM System/360 JCL (which had an elaborate DD "Dataset Definition" specification for I/O devices). Though the command filled a need, the interface design was clearly a prank.
[Jargon File]
(2005-08-08)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for DD

DD

  1. days after date
  2. developmental disability
  3. developmentally delayed
  4. dishonorable discharge
  5. Latin Divinitatis Doctor (Doctor of Divinity)
  6. double density
  7. dry-dock
  8. due date
  9. E.I. DuPont de Nemours & Co.

dd.

delivered

D.D.

demand draft
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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