| Bezugsquelle | source of supply |
| Zündquelle | ignition source source of ignition |
| Belegstelle | reference instance quotation |
| herausquellen | gush |
| Fehlerquelle | source of error |
| Engstelle | bottleneck |
| Baustelle | construction site building site building ground building lot building side lot |
| Bugwelle | bow wave |
| Bezugselement | antecedent |
| Bezugswort | antecedent |
| Bezugnahme | reference |
| Bezugsperson | reference person |
| Bezugsrahmen | point of reference |
| Bezugssystem | frame of reference reference frame |
| Abzugsleine | lanyard |
| Betrugsfall | fraud |
| Spannungsquelle | voltage source |
| Quisquilie | bagatelle |
| Primärquelle | primary source |
| Punktquelle | point source |