1. Adjective.  (statistics) (initialism of, autoregressive) .
  2. Noun.  (countable, plural '''ARs''') an AR-15 personal machine gun, M-16 assault rifle, M-4 carbine, derivative or related gun.
  3. Noun.  (accounting, uncountable) (initialism of, accounts receivable) .
  4. Noun.  (sports, countable) area record: best achievement among those by persons from a given continent.
  5. Noun.  (initialism of, armed robbery) .
  6. Noun.  (computing, chiefly) augmented reality.
  7. Noun.  (countable, plural '''ARs''') (initialism of, aspect ratio) .
  8. Proper noun.  (form of, Postal abbreviation) .
  9. Noun.  (Latn-def, en) .

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This entry was last updated on RefTopia from its source on 3/20/2012.