What does AD stand for?

What does AD mean?

AD	Average Difference Academic & Science » Mathematics
AD	Allowable Deductions Governmental » US Government
AD	ADVO, Inc. Business » NYSE Symbols
AD	Advanced Development Governmental » Military
AD	After Dinner Miscellaneous » Food
AD	Anomalous Dispersion Academic & Science » Meteorology
AD	Admission and Discharge Medical » Hospitals
AD	Acción Democrática International » Guatemalan
AD	Air Density Academic & Science » Meteorology
AD	Architectural Digest Academic & Science » Architecture
AD	Ante Diem (before the day) Miscellaneous » Days Abbreviations
AD	Applications Development Computing » Software
AD	Adult Disease Medical » Physiology
AD	Air Division Governmental » Military
AD	Agility Dog Miscellaneous » Dogs Related
AD	Auditory Discrimination Medical » Physiology
AD	Accumulation Distribution Business » General
AD	Außer Dienst International » German
AD	Aviation Division Academic & Science » Ocean Science
AD	Andorra, Principality of Regional » Countries
AD	Admitting Diagnosis Medical » Physiology
AD	Attack Damage Governmental » Military
AD	Aortic Diameter Medical » Physiology
AD	Almost Dead Governmental » Police
AD	Alternating Days Medical » Physiology