| A | B |
| fastidious | adjective; hard to please; easily disgusted |
| felicitous | adjective; well-chosen for the occasion; appropriate |
| felony | noun; a crime of such seriousness that it is punishable by a stringent sentence |
| ferocity | noun; the quality or state of being fierce, savage, or relentless |
| fidelity | noun; loyalty; faithfulness; accuracy |
| filial | adjective; of or expected from a son or daughter |
| finality | noun; the quality or condition of being complete or settled; conclusiveness |
| fiord | noun; a long, narrow inlet of the sea, with steep cliffs rising alongside |
| flail | noun or verb; a manual tool used for threshing grain; to beat or strike at something |
| flaunt | verb; to show off; to display oneself proudly |