What does AD stand for?

What does AD mean?

AD	Anti-Diversity Governmental » Politics
AD	Analog Disc Computing » Hardware
AD	Acid Detecting Academic & Science » Chemistry
AD	ASTIA (Armed Services Technical Information Agency) Document Governmental » Military
AD	Arterial Device Medical » Physiology
AD	As Directed Medical » Hospitals
AD	Adaptive Dither Computing » Software
AD	Accelerator Delta Community » Music
AD	Athletic Dictator Miscellaneous » Funnies
AD	Attachment Device Medical » Physiology
AD	Abdominal Diaphragmatic breathing Medical » Physiology
AD	Andrew Darnall Community » Famous
AD	Admission and Disposition (report) Governmental » Military
AD	Amici Dignitatis International » Latin
AD	FAADC2I Dual Workstation-class computer unit Governmental » Military
AD	Attack Damage Community » Sports
AD	Alliance of Destructors Miscellaneous » Science Fiction
AD	Auto Dueler Community » Sports
AD	Amoebic Dysentery Medical » Physiology
AD	Ante Diem (before the day) International » Latin
AD	Attachment Device Governmental » NASA
AD	Arrested Development Academic & Science » Psychology
AD	Acronym Director Business » Positions
AD	Admissions Community » Educational
AD	Destroyer Tender (Auxiliary, Destroyer) Miscellaneous » Ship Types