| Lichtsekunde | light-second |
| Lichtstunde | light-hour |
| Picosekunde | picosecond |
| Lichtmenge | luminous energy |
| Flechtenkunde | lichenology |
| Nachtstunde | night hour |
| Schaltsekunde | leap second |
| Mikrosekunde | microsecond |
| Millisekunde | millisecond |
| Pikosekunde | picosecond |
| Lichtdouble | stand in |
| Lichtkuppel | top light |
| Lichtland | lightland |
| Lichtpause | blueprint |
| Lichtsegel | light sail |
| Lichtwelle | light wave |
| lichte Höhe | headway |
| Lichterkette | chain of lights chain of beacons |
| Lichthupe | headlight flasher |
| Lichtstärke | luminous intensity |