| Lichtwelle | light wave |
| Lichtquelle | light source |
| Lichtmenge | luminous energy |
| Sichtweise | standpoint |
| Sichtweite | visibility |
| Schwelle | threshold doorstep on the verge sleeper railroad tie |
| Lichtbild | photograph |
| Lichtdouble | stand in |
| Lichtecho | light echo |
| Lichtmess | Candlemas |
| Lichtpause | blueprint |
| Lichtsegel | light sail |
| lichtecht | lightfast |
| Lichthupe | headlight flasher |
| Lichtkegel | light cone |
| Lichtwellenleiter | fibre optic cable |
| lichten | weigh |
| lichtlos | aphotic dark |
| Sichelzelle | sickle cell |
| Wichtel | secret Santa |