Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • abbr. alternating current
  • abbr. area code

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • absolute ceiling
  • account current
  • acre
  • adult contemporary, a radio format
  • air conditioning; air conditioned, usually: A/C
  • air corps
  • aircraftman
  • all clear, as in button on electronic calculator
  • alternating current; often used to indicate an alternating potential rather than a current, as in 110V AC.
  • anno Christi, in the year of Christ.
  • ante Christum before Christ.
  • ante cibum before meals.
  • antichristian
  • appellation contrôlée
  • area code
  • army corps
  • as charged, as in: guilty as charged, usually: a/c
  • athletic club
  • audible chuckle
  • author's correction
  • automobile club
  • Auxiliary Collier - a naval coal transport that travels with the fleet to provide coal for coal powered warships
  • axiom of choice
  • Companion of the Order of Australia.
  • aviation cadet
  • abbr. Aceh, an autonomous province of Indonesia.
  • abbr. Acre, a state of Brazil.

Etymologies

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