Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • abbreviation tank destroyer
  • abbreviation touchdown
  • abbreviation Treasury Department

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry tritium-deuterium, a type of hydrogen (H2) molecule
  • noun The ISO 3166-1 two-letter (alpha-2) code for Chad.
  • initialism Touch Down
  • initialism Tardive Dyskinesia
  • initialism Teachta Dála, a member of Dáil Éireann, the lower chamber of the Parliament of the Republic of Ireland. (See usage notes below in Irish section).
  • initialism Territorial Decoration (previously awarded to officers who had more than 12 years commissioned service in the Territorial Army (UK))
  • initialism travel ticket designator

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