AD
From open-encyclopedia.com - the free encyclopedia.
AD or ad may stand for:
- ad or advertisement, see advertising
- ad- prefix
- Air Defence
- Andorra, ISO 3166-1 alpha-2 country code
- Anno Domini ("In the Year of [Our] Lord"). This year is A.D. 2008.
- anni Diocletiani
- Assistant Director
- Destroyer Tender, US Navy hull classification symbol
- Alzheimer's disease
- The Air Department of the British Admiralty
- The word ad is Latin for "at" or "to" in some phrases taken from Latin.
- Norfolk, Franklin and Danville Railway (AAR reporting mark AD)
- Microsoft's Active Directory
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