OA

abbreviation

1. on account

2. open account

3. overall

* * *

office automation.

* * *

OA UK [ˌəʊ ˈeɪ] US [ˌoʊ ˈeɪ] noun [countable] [singular OA plural OAs]

Order of Australia: a special honour given to Australians who have done something important or useful for their country http://www.macmillandictionary.com/med2cd/weblinks/oa.htm

Thesaurus: royal honours_hyponym