| A | B |
| forbid | v. to not allow |
| foreign | adj. coming from another country; strange |
| formula | n. a rule in science or math with numbers and symbols |
| foundation | n. a soldi structure on which a building is built |
| frigid | adj. extremely cold |
| frontier | n. the far edge of a country -not many people live there |
| function | v. to work n. a border between two countries |
| genuine | adj. real, not fake; honest |
| ignore | v. to not pay attention to |
| imitate | v. to copy or mimic |