| Acronym | Definition |
|---|
| A&D | Art and Design |
| A&D | Advantages and Disadvantages |
| A&D | Architecture and Design |
| A&D | Anxiety and Depression (psychiatry) |
| A&D | Aerospace and Defense (industry) |
| A&D | Analysis and Design |
| A&D | Angels and Demons (novel) |
| A&D | Armed & Dangerous |
| A&D | Arrival and Departure (travel) |
| A&D | Alcohol & Drugs |
| A&D | Automation & Drives |
| A&D | Alumni and Development (various schools) |
| A&D | Analogue & Digital (measurement applications) |
| A&D | Acquisition & Development |
| A&D | Acquisitions and Divestitures (oil & gas) |
| A&D | Admission and Discharge (hospital) |
| A&D | vitamin A and D (ointment) |
| A&D | Application and Development |
| A&D | Acquisitions and Disposals |
| A&D | Assumptions and Definitions |
| A&D | Architecture et Développement (French) |
| A&D | Appeals & Discipline (committee) |
| A&D | Abandonment & Destruction (property regulation) |
| A&D | Archive and Dissemination |
| A&D | Admission & Disposition |
| A&D | Accommodation and Destination (tourism industry) |
| A&D | Accounting and Disbursing System |
| A&D | Authorization & Direction Letter (Office of the Superintendent of Bankruptcy, Canada) |