- AR
- Argentina (Regional » Countries)** Arkansas (Regional » States)* Armor (Governmental » Military)* At Risk (Medical » Physiology)* Argon (Academic & Science » Chemistry)* Accounts Receivable (Business » Positions)* Aspect Ratio (Community » Media)* Aspect Ratio (Academic & Science » Electronics)* Army Reserve (Governmental » Military)* Angstrom (Governmental » Suppliers)* Acid Reflux (Medical » Physiology)* Army Regulation (Governmental » Military)* Aller-retour (International » French)* Auto Regressive (Business » Accounting)* Address Register (Computing » Assembly)* Automatic Rifle (Governmental » Military)* Apple River (Regional)* American Rivers (Community » Non-Profit Organizations)* Analytical Reagent (Academic & Science » Chemistry)* Accelerated Reading (Community » Educational)* Artificial Respiration (Medical » Physiology)* Anal Retentive (Medical » Physiology)* Artificial Reality (Computing » General)* Agricultural Residues (Governmental » Environmental)* Active Resistance (Medical » Physiology)* Account Review (Business » Accounting)
Abbreviations dictionary. 2012.