| Abbreviation | Definition |
|---|---|
| A | Adobe |
| A | Aggregate |
| AA | Anchor Assembly |
| AAC | Acute Angle Closure |
| AAC | Autoclave Aerated Concrete |
| AAC | Autoclaved Aerated Concrete |
| AACC | Amount Available for Construction Cost |
| AACCC | Alberta Aboriginal Construction Career Centre |
| AACCC | Alberta Aboriginal Construction Careers Centres |
| AAE | Alkylated Amine Epoxy |
| AAMA | American Architectural Manufacturers' Association |
| AARSC | anatomic ACL reconstruction scoring checklist |
| AASHTO | American Association of State Highway and Transportation Officials |
| AB | Anchor Bolt |
| AB | Asbestos Board |
| ABC | Alberta Building Code |
| ABCC | Australian Building and Construction Commission |
| ABCC | Australian Building and Construction Commissioner |
| ABS | Anchor Bolt Stabilizer |
| ABS-DWV | Acrylonitrile Butadiene Styrene Drainage Waste Vent |