| Abbreviation | Definition |
|---|---|
| ACAI | Architecture Commune des Applications Informatiques |
| ACB | Active Chilled Beam |
| ACC | Architectural Control Committee |
| ACC | Architectural Covenant Changes |
| ACCT | Architecture Collaborative in Chinese Theory |
| ACD | Architecture Construction Design |
| ACDM | Architecture centric design method |
| ACDM | Architecture Centric Development Method |
| ACE | Amethyst Contrast Enhancer |
| ACE | Architecture Construction and Engineering |
| ACE | Artificial Compound Entity |
| ACEE | Architecture Civil Engineering Environment |
| ACFA | Austin Center for Architecture |
| ACH | Air Changes per Hour |
| ACHP | Advisory Council on Historic Preservation |
| ACI | American Concrete Institute |
| ACM | Architecture and Construction Management |
| ACME | Architecture Construction Manufacturing Engineering |
| ACMV | Air Conditioning and Mechanical Ventilation |
| ACN | Architecture for Control Networks |