| Term | Definition / Meaning / Stand for |
| 4X2 |
2 Wheel Drive |
| ABR |
Adaptive Biking and Recreation |
| ACA |
American Camp Association |
| AFAA |
Aerobics and Fitness Association of America |
| AFG |
Adventure Fitness Group |
| AFYP |
Acting for Young People |
| AHR |
Active Hiking and Recreation |
| AIH |
Active Indoor Hobbies |
| AMR |
Active Mountain Recreation |
| AORE |
Association of Outdoor Recreation and Education |
| AOT |
Adventure Outdoor Training |
| APF |
Athletic Performance Facility |
| APS |
Adventure Park Safety |
| ARP |
Adaptive Recreation Programs |
| ASA |
Amateur Sports Association |
| ASC |
Adventure Sports Certification |
| ASR |
Adaptive Sports and Recreation |
| ATV |
All-Terrain Vehicle |
| AWA |
American Watercraft Association |
| AWR |
Adaptive Water Recreation |
| BAF |
Barefoot Adventure Fun |
| BCR |
Bike and Canoe Recreation |
| BCT |
Base Camp Training |
| BCU |
British Canoeing Union |
| BJJ |
Brazilian Jiu-Jitsu |
| BMT |
Backpacking and Mountain Trekking |
| BPC |
Bike Park Club |
| BPP |
Beach Park Program |
| BPW |
Bike Path and Walkways |
| BRC |
Backcountry Recreation Club |
| BRP |
Board Riding Program |
| BRT |
Basic Recreational Training |
| BSA |
Boy Scouts of America |
| BSR |
Board Sports Recreation |
| BWA |
Board Water Activities |
| BWCWA |
Boundary Waters Canoe Wilderness Area |
| BYOT |
Bring Your Own Tent |
| CAV |
Canoeing and Adventure Voyages |
| CBB |
Campfire and BBQ Nights |
| CBT |
Canoeing Basics Training |
| CEJP |
Center for Entrepreneurial Jewish Philanthropy |
| CFGAA |
Cy-Fair Girls Athletic Association |
| CFS |
Community Fitness and Sports |
| CFT |
Community Fitness Training |
| CILT |
Camper-in-Leadership-Training |
| CILT |
Campers In Leadership Training |
| CMC |
Community Marathon Club |
| CMT |
Community Multi-Sports Training |
| CPC |
Canoeing and Paddling Club |
| CPR |
Cardio-Pulmonary Resuscitation (for outdoor safety) |
| CPSI |
Canadian Playground Safety Institute |
| CSA |
Community Sports Association |
| CSR |
Community Sports and Recreation |
| CTC |
Climbing Technical Certification |
| CWS |
Community Water Sports |
| CWT |
Camping Wilderness Training |
| CYO |
Catholic Youth Organization (sports & recreation) |
| DBR |
Deepwater Boating and Recreation |
| DCC |
Dance and Cheerleading Club |
| DCC |
Drift Car Club |
| DFP |
Dance and Fitness Program |
| DGR |
Desert and Grassland Recreation |
| DMR |
Diving and Marine Recreation |
| DNR |
Department of Natural Resources |
| DPT |
Dog Park Training |
| DRP |
Digital Recreation Programs |
| DTC |
Disc Toss Competition |
| DTS |
Dance Team Sports |
| DWB |
Dog Walk and Board |
| DWR |
Desert and Wilderness Recreation |