Dd - Definition and Overview

DD or dd has a number of meanings:

• dd is a Unix program to copy and convert a file.
• dd is an HTML and XHTML element for specifying definition data.
• DD is a brassiere size.
• DD is a hull classification symbol for US Navy destroyers.
• DD is the NYSE ticker symbol for DuPont.
• The former internet domain for the German Democratic Republic ended with ".dd".
• DD may also stand for:
  • Dolby Digital, the trademark for an audio compression system created by Dolby Laboratories.
  • Double Density, a floppy disk storage density.
  • Divinitatis Doctor or Doctor of Divinity
  • Designated Driver, a person who does not drink at a party and drives others home safely.
• Dominic Deegan (http://www.dominic-deegan.com), a webcomic.
• Digital Drivel, a highly successful messageboard