AO |
- Adjustable Objectives (sports, Hunting/sports, Scopes and Optics and Lasers - a type of scope)
- All Original (dolls and bears, Miscellaneous - usually refers to dolls that has its original clothing, and has not been altered in anyway. May also be seen as 'A/O')
- Adults Only (video games, Ratings - an ESRB rating, 18yrs+)
- American Optical (business and industrial, Healthcare/business and industrial, Lab Equipment - a manufacturer of safety glasses/clothing, Sunglasses - a manufacturer of sunglasses, see [ www.aoeyewear.com
 ])
- Auxiliary Oiler (collectibles, Militaria/collectibles, Boats and Ships - a classification prefix code for U.S. Navy ships)
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[ view all abbreviations beginning with ' A ' ]
