Definitions

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

  • abbreviation accounts receivable
  • abbreviation Arkansas
  • abbreviation army regulation

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

  • noun The ISO 3166-1 two-letter (alpha-2) code for Argentina.
  • adjective statistics Initialism of autoregressive.
  • noun countable an AR-15 personal machine gun, M-16 assault rifle, M-4 carbine, derivative or related gun
  • noun accounting Initialism of accounts receivable.
  • noun sports, countable area record: best achievement among those by persons from a given continent
  • noun Initialism of armed robbery.
  • noun computing augmented reality
  • noun countable Initialism of aspect ratio.
  • proper noun Postal abbreviation of Arkansas

Etymologies

Sorry, no etymologies found.

Support

Help support Wordnik (and make this page ad-free) by adopting the word AR.

Examples

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.