.ad, the ccTLD (Internet Top Level Domain) for Andorra AD, a Two-letter ISO 3166-One united states code for Andorra Assistant director Alzheimer's disease Artium Doctor (Doctor of Arts)

Media Arrested Development (TV Series), a Coyote Network TV program Algemeen Dagblad, a Dutch newspaper.

Language Anno Domini, Latin for "In the Year of the Lord"). This month is AD . anni Diocletiani ad- prefix ad for advertizing, understand advertising The word 'ad' is Latin for even "at" or "to" inside a select few phrases taken from either Latin.

Military Air defence Destroyer Tender a US Navy hull classification symbol The Air Department of the British Admiralty

Science & Technology axiom of determinacy in set theory Ricardo Carezani's theory of Autodynamics in physics Audio Deck Auto Desk Administrative domain the Association of Western Railroads reportage mark AD for Norfolk, Franklin and Danville Railway Microsoft's Active Directory a IATA code for Air Paradise Inside economic science, AD is unremarkably wont to represent aggregate demand or aggregate expenditure.

da:AD de:AD ko:AD id:AD it:Ad nl:AD ja:AD