ADD

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Simple English Wiktionary
Simple English Wiktionary has a dictionary definition (word meaning) for:

ADD or Add may be:

  • Addition
  • Administration on Developmental Disabilities, part of United States Department of Health and Human Services
  • Advanced Dungeons & Dragons
  • assembly language computer instruction to add two numbers
  • Attention-deficit hyperactivity disorder
  • Attribute driven design
  • Advanced Day Dreaming, an advanced form of day-dreaming, aswell as a sub-level of Lucid Dreaming
Transportation
  • Adderley Park railway station (National Rail code: ADD), in the United Kingdom
  • Bole International Airport (IATA airport code: ADD), in Addis Ababa, Ethiopia
In other languages