ADD

ADD can refer to several topics:

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• attention-deficit hyperactivity disorder
• Attribute Driven Design - a software architecture design method
• The IATA airport code for Bole International Airport in Addis Ababa, Ethiopia
• The National Rail code for Adderley Park railway station, United Kingdom. External links: {{Sildb prim|ADD|station information}}; {{Mmukpcloc|B8|1BY}}; {{Brldb prim|ADD|live departures and arrivals}}.
• The instruction in computer assembly language to add two numbers.