| Klara | Clara |
| klar | clear lucid obvious ready of course |
| ALARA | ALARA |
| Clara | Clare Clara Clary |
| Lara | Lara |
| Klaas | Nick |
| Klage | lament complaint claim |
| Klamm | gorge ravine canyon |
| klamm | clammy cash-strapped |
| Klan | clan |
| Klang | sound ring tone chord harmony |
| Klaps | clap |
| Klaue | claw cloven hoof |
| Klaus | kloyz |
| Kläranlage | sewage treatment plant wastewater treatment plant |
| klären | clarify clear settle purge treat |
| FlaRak | SAM |
| ALARP | ALARP |
| Alarm | alarm alert |
| Clare | Clare |