1. Agricultural Adjustment Administration.
  2. Amateur Athletic Association.
  3. American Automobile Association.
  4. antiaircraft artillery.
  5. Automobile Association of America.


  1. a proportional shoe width size, narrower than AA.
  2. the highest quality rating for a corporate or municipal bond.
  3. Electricity. a battery size for 1.5 volt dry cells: diameter, 0.4 inches (1 cm); length 1.7 inches (4.3 cm).

  1. Amateur Athletic Association.
  2. American Automobile Association.
  3. Automobile Association of America.

abbreviation for

  1. British Amateur Athletic Association
  2. anti-aircraft artillerySee also triple A
  3. US Automobile Association of America
  4. Automobile Association of Australia

also AAA, abbreviation of American Automobile Association, attested 1902, American English, the year the organization was founded.

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