| BRIMFULNESS | • brimfulness n. Quality of being brimful. • BRIMFULNESS n. the state of being brimful, also BRIMFULLNESS. |
| DIREFULNESS | • direfulness n. Quality of being direful. • DIREFULNESS n. the state of being direful. |
| FERTILENESS | • fertileness n. (Rare) The state or characteristic of being fertile. • FERTILENESS n. the state of being fertile. |
| FINGERGLASS | • finger␣glass n. Finger bowl. • FINGERGLASS n. a bowl for water to clean the fingers at table. |
| FLINDERSIAS | • FLINDERSIA n. any tree of the Australian genus Flindersia. |
| FLOWERINESS | • floweriness n. The quality of being flowery. • FLOWERINESS n. the state of being flowery. |
| FOLKSINGERS | • folksingers n. Plural of folksinger. • folk␣singers n. Plural of folk singer. • FOLKSINGER n. one who sings folk songs or sings in a style associated with folk songs. |
| FOSTERLINGS | • fosterlings n. Plural of fosterling. • FOSTERLING n. a foster child. |
| FRAGILENESS | • fragileness n. The property of being fragile. • FRAGILENESS n. the state of being fragile. |
| FRAILNESSES | • frailnesses n. Plural of frailness. • FRAILNESS n. the state of being frail. |
| FRIABLENESS | • friableness n. The state or quality of being friable; friability. • FRIABLENESS n. the state of being friable. |
| FRIZZLINESS | • FRIZZLINESS n. the state of being frizzly. |
| FRONTOLYSIS | • frontolysis n. (Meteorology) The degeneration or dissipation of an atmospheric weather front. • FRONTOLYSIS n. the weakening or disappearance of a weather front. |
| SULFURISING | • sulfurising v. Present participle of sulfurise. • SULFURISE v. to combine or impregnate with sulphur or any of its compounds, also SULFURIZE, SULPHURISE, SULPHURIZE. |