| Abbreviation | Definition |
|---|---|
| ARCHITECTURE | Architectural |
| ARD | Architecture Requirement Document |
| ARD | Around |
| ARE | Architect Registration Examination |
| ARE | Architect Registration Examinations |
| ARF | Architecture and Reference Framework |
| ARG | Architectural Resources Group |
| ARIA | Advanced Robotics Intelligence Architecture |
| ARIBA | Associate of the Royal Institute of British Architects |
| ARIES | Architecture for Rapid Implementation of Enterprise Systems |
| ARKI | Architecture |
| ARO | Architecture Research Office |
| ARQ | Architect |
| ARQ | Architectural Research Quarterly |
| ARSA | Alternate Reality Storytelling Architecture |
| ARTA | Apple Real Time Architecture |
| ARU | Architecture Research Unit |
| ARY | Architects Rego and Youngquist |
| AS | Australian Standard |
| AS | Auto-Scaling |