| A | B |
| to flourish | to grow well; to develop well |
| to found | to start an organization, town or institution |
| to foretell | to tell of something happening before it happens; to predict |
| to function | to work in a particular way |
| to fast | to eat little or no food |
| to feature | to have an important part in |
| to flare | to suddenly burn very brightly |
| to fulfill | to do something you promised or wanted to do |
| to figure | to think that something is likely to be true after thinking about it; to find an answer |
| to focus | to give your attention to a particular thing; to move part of a camera to see more clearly |
| to forbid | to order someone not to do something |
| to further | to give aid to or promote |