aad

A1A1D2
/ɑːd/

adjective

old

“He’s aad codger.”

Less commonScrabble 4

Meanings

aad1

adjectiveaad (comparative more aad, superlative most aad)

comparative more aad · superlative most aad

  1. Geordieold

    He’s aad codger.

aad2

nounaad (plural aads)

plural aads

  1. abbreviationinitialismInitialism of active acoustic device; active acoustical device.
  2. abbreviationinitialismInitialism of advanced ammunition depot.
  3. abbreviationinitialismbiochemistryInitialism of alloxazine adenine dinucleotide.
  4. abbreviationinitialismInitialism of antibiotics-associated diarrhea.

AAD3

proper noun
  1. abbreviationinitialismInitialism of American Academy of Dentists.
  2. abbreviationinitialismInitialism of American Academy of Dermatology.
  3. abbreviationinitialismInitialism of Australian Antarctic Division.
    1 more example

    For the next four or five years, a special drill designed at the AAD will slice through the ice pulling up 3-metre cores at a time until the drill hits bedrock, almost 3km down. […] The idea to go chasing the world’s oldest ice was included in a 2013 report from Dr Tony Press, the former AAD director and Antarctic scientist who set out what Australia’s priorities on the vast continent should be.

    2023 January 15, Graham Readfearn, “Time tunnel: why an Australian expedition is drilling through 2.6km of Antarctic ice”, in The Guardian
  4. abbreviationinitialismInitialism of Azure Active Directory.
nounAAD (plural AADs)

plural AADs

  1. abbreviationinitialismInitialism of Aircraft Assignment Directive.
  2. abbreviationinitialismInitialism of automatic activation device.
  3. abbreviationinitialismgovernmentInitialism of Anti-aircraft division.
  4. abbreviationinitialismgovernmentInitialism of Army Air Defense.
  5. abbreviationinitialismgovernmentInitialism of Airborne Assault Division.
  6. abbreviationhistoricalinitialismgovernmentInitialism of Armored Automobile Detachment.

Origin

aad · adjective

  1. Northern Middle Englishald
  2. Englishaad

Regional form of old (compare auld), from Northern Middle English ald (southern old).

Full word history & related roots →

Rhymes & wordplay

Anagrams

Cite this entry
APA

aad. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/aad

MLA

“aad.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/aad. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “aad,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/aad.

Source: aad on Wiktionary, CC BY-SA 4.0.