| fast | almost nearly all but |
| Fasten | fasting fast |
| fasten | fast |
| Fastfood | fast food |
| Fase | chamfer |
| Fass | barrel cask |
| Cast | cast |
| Ast | branch bough |
| Bast | bast velvet |
| Gast | guest invitee visitor sojourner visitant |
| Hast | haste hurry precipitation |
| Last | burden load weight pressure |
| Mast | mast pylon fattening harvest |
| Rast | break rest |
| fasen | bevel |
| Fasan | pheasant |
| Faser | fiber fibre |
| Fast Food | fast food |
| Fastnacht | Shrove Tuesday carnival Shrovetide |
| fastidiös | fastidious |