| Term | Definition / Meaning / Stand for |
| A/C Unit |
Air Conditioning Unit |
| A/C |
Air Conditioning |
| A/V Receiver |
Audio/Video Receiver |
| A/V |
Audio/Video |
| AB |
Anti-bacterial |
| ABV |
Above |
| AC |
Air Conditioning |
| ACR |
Air Conditioning Repair |
| AD |
Advertisement |
| ADA |
Adjustable Domestic Appliance |
| ADA |
Americans with Disabilities Act |
| ADT |
Advanced Digital Technology (security system) |
| AEB |
Automatic Emergency Braking |
| AES |
Advanced Encryption Standard |
| AF |
Air Filter |
| AFL |
Automatic Fault Locator |
| AHS |
American Home Shield |
| AI |
Artificial Intelligence |
| AIM |
Active Interface Module |
| ALD |
Automatic Lighting Design |
| AMP |
Ampere |
| ANSI |
American National Standards Institute |
| AOC |
Active Optical Cable |
| AOF |
Area of Focus |
| AP |
Apartment |
| APR |
Annual Percentage Rate |
| APS |
Automatic Payment System |
| APT |
Apartment |
| AR |
Attic Room |
| ARC |
Alternating Current |
| ARP |
Address Resolution Protocol (for network communication in smart home devices) |
| ARV |
Appraised Residential Value |
| ARV |
After Repair Value |
| ASH |
Asbestos |
| ASM |
Automatic Shutoff Mechanism |
| AUP |
Acceptable Use Policy |
| AV |
Audio Visual |
| BB |
Barbecue |
| BBL |
Building Block Layout |
| BBMD |
BACnet Broadcast Management Device |
| BCP |
Building Code Provision |
| BDR |
Bedroom |
| BFA |
Building Foundation Analysis |
| BFP |
Basement Flood Protection |
| BIC |
Built-In Cabinets |
| BKH |
Back Home |
| BLC |
Balcony |
| BP |
Boiler Pressure |
| BSM |
Basic Sub-Model (home features) |
| BSMT |
Basement |
| BTH |
Bathroom |
| C/A |
Central Air |
| CD |
Circuit Design (electrical) |
| CF |
Ceiling Fan |
| CFC |
Chlorofluorocarbon |
| CH |
Chimney |
| CIR |
Circular Room |
| CL |
Closet |
| CO |
Carbon Monoxide |
| CP |
Ceiling Panel |
| CPR |
Carpet Padding Requirement |
| CPT |
Carpet |
| CR |
Closet Room |
| CRF |
Common Room Feature |
| CSD |
Custom Security Devices |
| CTH |
Cottage |
| CTL |
Control |
| CUC |
Consumer Utility Charges |
| DFM |
Design for Manufacturing |
| DG |
Dishwasher |