| Abbreviation | Definition |
|---|---|
| OSU! | 1) A term used in karate. 2) A popular game originally released by Microsoft. |
| PAKU | Pan American Karate Union |
| PKA | Professional Karate Association |
| PKF | Panamerican Karate Federation |
| PKW | Pro Karate Weekly |
| PSKL | Pro Sport Karate League |
| PSKL | Professional Sport Karate League |
| SAKA | South Atlantic Karate Association |
| SCKA | Southern California Karate Association |
| SEKU | Shotokan of England Karate |
| SEKU | Shotokan of England Karate Union |
| SKA | Shotokan Karate of America |
| SKC | Sauvegarde Karaté Club |
| SKCA | Shotokan Karate Centrum Amsterdam |
| SKD | Shotokan Karate-Do |
| SKDS | Shotokan Karate Dojo Sömmerda |
| SKF | Shotakan Karate Fighters |
| SKID | Shotokan Karate International Deutschland |
| SKIF | Shotokan Karate Do International Federation |
| SKIF | Shotokan Karate International Federation |