ad > define
noun
- A public promotion of some product or service.
- synonyms: advertisement, advertizement, advertising, advertizing, advert
adverb
- In the Christian era; used before dates after the supposed year Christ was born.
- usage: "in AD 200"
- synonyms: A. D., anno Domini
by WordNet 3.0 © 2006 by Princeton University
(latin) AD - "Anno Domini" - in the year of the Lord
(Military) AD stands for one of the following: active duty; advanced deployability; air defense; automatic distribution; priority add-on
by Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.