| knifflig | fiddly tricky |
| Kniff | contrivance trick |
| kniffen | bend |
| pfiffig | nifty smart |
| griffig | catchy |
| kitzlig | ticklish |
| knallig | brash |
| knollig | bulbous |
| Kniegeige | viol |
| Knilch | creep blackguard |
| knifflige Frage | poser |
| Kniefall | kneeling down |
| Knifte | open sandwich |
| Kifferin | pothead |
| Kiffen | smoking dope |
| kiffen | blow bounce the goof balls burn the hay ganja grass hash |
| Kiffer | grasshead pothead stoner weedhead |
| Kliff | cliff sea cliff |
| Skiffle | skiffle |
| Tiefflug | flyby |