| Wi-Fi | Wi-Fi |
| ABC-Fibel | ABC |
| Q-Fieber | Q fever |
| -fizier | -fy |
| Id al-Fitr | Eid al-Fitr |
| fifty-fifty | fifty-fifty |
| Snuff-Film | snuff film snuff movie |
| -fizieren | -ify |
| Action-Figur | action figure |
| Fan-Fiction | fan fiction |
| Sitka-Fichte | Sitka spruce |
| Match-Fixing | match fixing |
| match-fixing | fix |
| West-Nil-Fieber | West Nile fever |
| Science-Fiction | science fiction |
| Okazaki-Fragment | Okazaki fragment |
| Martial-Arts-Film | martial arts film |
| Fünf-Finger-Rabatt | five-finger discount |
| Karelo-Finnische SSR | Karelo-Finnish SSR |
| Eulersche Phi-Funktion | Euler's totient function |