| Signalkrebs | signal crayfish |
| Hirnkrebs | brain cancer |
| Signalbild | signal aspect |
| Signalbrücke | gantry |
| Signalhund | hearing dog |
| Signal | signal |
| Signalhorn | alarm |
| Signallampe | signal lamp |
| Signalmast | semaphore signal mast signal post |
| Signatur | signature signatory |
| signieren | sign |
| Regelkreis | closed loop control loop |
| Kornkrebs | wheat weevil |
| Schildkrebs | tadpole shrimp |
| Senkreis | cutting |
| Inkreis | incircle |
| Salinenkrebs | brine shrimp |
| Schaltkreis | circuit |
| Signalbegriff | signal indication |
| Signalflagge | pennant |