| Synonyms | Length | Vowels | Syllables | |
|---|---|---|---|---|
| Fire Hydrant | 12 | 9 | 3 | 4 |
| Fire Off | 8 | 5 | 3 | 2 |
| Firing | 6 | 4 | 2 | 2 |
| Firing Off | 10 | 7 | 3 | 3 |
| Fir Tree | 8 | 5 | 3 | 2 |
| Fishhook | 8 | 5 | 3 | 2 |
| Flag | 4 | 3 | 1 | 1 |
| Flap | 4 | 3 | 1 | 1 |
| Flatter | 7 | 5 | 2 | 2 |
| Flirt | 5 | 4 | 1 | 1 |
| Floozie | 7 | 3 | 4 | 2 |
| Floozy | 6 | 4 | 2 | 2 |
| Flop | 4 | 3 | 1 | 1 |
| Flummox | 7 | 5 | 2 | 2 |
| Flurry | 6 | 5 | 1 | 2 |
| Fly | 3 | 3 | 0 | 1 |
| Fly Ball | 8 | 7 | 1 | 2 |
| Foal | 4 | 2 | 2 | 1 |
| Foetor | 6 | 3 | 3 | 2 |
| Footslog | 8 | 5 | 3 | 2 |
| Fornicatress | 12 | 8 | 4 | 4 |
| Foul | 4 | 2 | 2 | 1 |
| Found | 5 | 3 | 2 | 1 |
| Fox | 3 | 2 | 1 | 1 |
| Foyer | 5 | 3 | 2 | 1 |
| Frail Sister | 12 | 8 | 4 | 3 |
| Fray | 4 | 3 | 1 | 1 |
| Frazzle | 7 | 5 | 2 | 2 |
| Freight | 7 | 5 | 2 | 1 |
| Fret At | 7 | 5 | 2 | 2 |
| Fuddle | 6 | 4 | 2 | 2 |
| Fulfil | 6 | 4 | 2 | 2 |
| Fulfill | 7 | 5 | 2 | 2 |
| Fuss | 4 | 3 | 1 | 1 |
| Fuss At | 7 | 5 | 2 | 2 |

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