| Subject | English | German |
| gen. | Lower yield stress ReL | untere Streckgrenze |
| med. | rel.biol.equivalent dose | biologisch-wirksame Dosis |
| med. | rel.biol.equivalent dose | RBW-Dosis |
| AI. | REL system | REL-System (schnell erweiterbare Sprache, ein Frage Antwort-System) |
| transp., mech.eng. | ring handle double act. pos. lock. quick rel.pin | Kugelstift |