| BULLMASTIFF | • bullmastiff n. Alternative letter-case form of Bullmastiff. • Bullmastiff n. A breed of very large mastiff originally bred to immobilize poachers. • BULLMASTIFF n. a breed of dog. |
| FAITHLESSLY | • faithlessly adv. In a faithless manner. • FAITHLESS adv. without faith. |
| FALLIBILIST | • fallibilist n. An advocate or supporter of fallibilism. • FALLIBILIST n. one who holds to the doctrine that empirical knowledge is uncertain. |
| FELLATRICES | • fellatrices n. Plural of fellatrix. • fellatrices n. Plural of fellatrice. • FELLATRIX n. a female who fellates. |
| FELLATRIXES | • fellatrixes n. Plural of fellatrix. • FELLATRIX n. a female who fellates. |
| FIBRILLATES | • fibrillates v. Third-person singular simple present indicative form of fibrillate. • FIBRILLATE v. to undergo fibrillation. |
| FINGERSTALL | • fingerstall n. A protective cover for the finger; a fingercot. • FINGERSTALL n. a covering for protecting a finger. |
| FLASHLIGHTS | • flashlights n. Plural of flashlight. • FLASHLIGHT n. a sudden bright artificial light used in taking photographic pictures. |
| FLUVIALISTS | • fluvialists n. Plural of fluvialist. • FLUVIALIST n. one stressing the role of rivers in explanation. |
| FOOTBALLIST | • footballist n. (Dated) A football player. • FOOTBALLIST n. one who plays football, also FOOTBALLER. |
| FUSILLATION | • fusillation n. (Archaic) An execution by shooting. • FUSILLATION n. (obsolete) death by shooting. |
| INFLATABLES | • inflatables n. Plural of inflatable. • INFLATABLE n. an inflatable vehicle. |
| LACTIFLUOUS | • lactifluous adj. Flowing with milk. • LACTIFLUOUS adj. flowing with milk. |
| MULTIFLORAS | • multifloras n. Plural of multiflora. • MULTIFLORA n. a type of climbing rose having clusters of small flowers. |
| MULTIFOCALS | • MULTIFOCALS n. multifocal spectacles. |
| PAINFULLEST | • painfullest adj. Superlative form of painful: most painful. • PAINFUL adj. causing pain. |