| AD&D | Advanced Dungeons and Dragons 
| Others |
| AD&D | Application Development and Delivery
| Others |
| ADD | A Day Doing
| Others |
| ADD | A Dog's Dream
| Others |
| ADD | A Dumb Dog
| Others |
| ADD | Abbott Diagnostic Division
| Others |
| ADD | Absence of Dad's Discipline
| Others |
| ADD | Acceptable Daily Dose
| Others |
| ADD | Accidental Death & Dismemberment
| Others |
| ADD | Accumulated Degree Days
| Others |
| ADD | Action on Disability and Development
| Others |
| ADD | Activated Dough Development
| Others |
| ADD | Active Driving Display
| Others |
| ADD | Acute Diarrhoeal Disorder
| Others |
| ADD | Adaptable, Determined, Dedicated
| Others |
| ADD | Adapter Device Driver
| Others |
| ADD | Adaptive Digital Display
| Others |
| Add | Addenda
| Others |
| ADD | Addendum ADD Addition
| Others |
| ADD | Addiction
| Others |
| ADD | Addis Ababa, Ethiopia
| Others |
| ADD | Addition
| Others |
| ADD | Additional Daddy Discipline
| Others |
| ADD | Additional Driver Discovery
| Others |
| ADD | Address ADD Additional
| Others |
| ADD | Adduct
| Others |
| ADD | Adduction
| Others |
| ADD | Adenosine Deaminase Deficiency
| Others |
| ADD | Adequate Discipline Deficiency
| Others |
| ADD | Administration on Developmental Disabilities
| Others |
| ADD | Adult Deficiency Disorder
| Others |
| ADD | Adult Deficit Disorder
| Others |
| ADD | Adult Discipline Disorder
| Others |
| ADD | Advanced Dietary Delivery
| Others |
| ADD | Advanced Digital Display
| Others |
| ADD | Advanced Discipline Deficit
| Others |
| ADD | Advanced Dumbass Disorder
| Others |
| ADD | After Death Disciples
| Others |
| ADD | Against Drunk Driving
| Others |
| ADD | Agency for Defense Development
| Others |
| ADD | AGP (Accelerated Graphics Port) Digital Display
| Others |
| ADD | Agp Digital Display
| Others |
| ADD | Ain't Denyin Dysfunction
| Others |
| ADD | Alcohol and Drug Dependency
| Others |
| ADD | American Dream Denial
| Others |
| ADD | American Dream Disorder
| Others |
| ADD | Americans for Donald Duck
| Others |
| ADD | Analog Digital Digital
| Others |
| ADD | Anatomically Directed Design
| Others |
| ADD | and ADD definition
| Others |
| ADD | and ADHD ADD
| Others |
| ADD | and ADHD The difference
| Others |
| ADD | Android Developer Day
| Others |
| ADD | Another Damn Disappointment
| Others |
| ADD | Another Darn Democrat
| Others |
| ADD | Another Darn Dog
| Others |
| ADD | Anterior Disc Displacement
| Others |
| ADD | Anti Discipline Disorder
| Others |
| ADD | Anti-Drone Defense
| Others |
| ADD | Anti-Dumping Duty
| Others |
| ADD | Apple Data Detectors
| Others |
| ADD | Application Development and Deployment
| Others |
| ADD | Approximate Delivery Date
| Others |
| ADD | Arab Digital Distribution
| Others |
| ADD | Architectural Design Document
| Others |
| ADD | Architecture Definition Document
| Others |
| ADD | Architecture Design and Development
| Others |
| ADD | Arithmetic Developed Daily
| Others |
| ADD | Arithmetic Done Daily
| Others |
| ADD | Armor Defeating Device
| Others |
| ADD | Art Du Deplacement
| Others |
| ADD | Astral Destruction Dragon
| Others |
| ADD | Attention Deficient Disorder
| Others |
| ADD | Attention Deficit Disorder
| Others |
| ADD | Attention Deficit Disordered
| Others |
| ADD | Attention Deficit Disorders
| Others |
| ADD | Attention Defisit Disorder
| Others |
| ADD | Attenttion Deficit Disorder
| Others |
| ADD | Attribute Driven Design method
| Others |
| ADD | Attrribute-Driven Design
| Others |
| ADD | Audit and Due Diligence
| Others |
| ADD | Authorized Diamond Dealer
| Others |
| ADD | Authorized Digital Dealers
| Others |
| ADD | Auto Data Direct
| Others |
| ADD | Automatic Defect Detection
| Others |
| ADD | Automatic Disconnection Differential
| Others |
| ADD | Automatic Document Detection
| Others |
| ADD | Automotive Data Dictionary
| Others |
| ADD | Automotive Dealer Day
| Others |
| ADD | Automotive Design and Development
| Others |
| ADD | Average Daily Dose
| Others |
| ADD | Away Dad Disorder
| Others |
| add. | Adde , Addatur Add let (it)be added
| Others |