| FANTASMAL | • fantasmal adj. Alternative spelling of phantasmal. • FANTASMAL adj. like a fantasm, also FANTASMIC. |
| FATALISMS | • fatalisms n. Plural of fatalism. • FATALISM n. the doctrine that all events are predetermined. |
| FILAMENTS | • filaments n. Plural of filament. • FILAMENT n. a slender threadlike body, fibre. |
| FLAMELETS | • flamelets n. Plural of flamelet. • FLAMELET n. a small flame. |
| FLAMEOUTS | • flameouts n. Plural of flameout. • flame-outs n. Plural of flame-out. • FLAMEOUT n. a failure of a jet engine in flight. |
| FLATFORMS | • flatforms n. Plural of flatform. • FLATFORM n. a thick, level sole on a shoe. |
| FLATMATES | • flatmates n. Plural of flatmate. • FLATMATE n. a person with whom one shares a flat. |
| FLATWORMS | • flatworms n. Plural of flatworm. • FLATWORM n. a flat-bodied worm. |
| FORMALIST | • formalist n. An overly formal person, especially one who adheres to current forms; a stickler. • formalist n. An advocate of formalism. • formalist adj. Of or pertaining to formalism; formalistic. |
| FOULMARTS | • foulmarts n. Plural of foulmart. • FOULMART n. a polecat, also FOUMART. |
| HALFTIMES | • halftimes n. Plural of halftime. • half-times n. Plural of half-time. • half␣times n. Plural of half time. |
| MASTERFUL | • masterful adj. Of or pertaining to the manner of a master of an art, technique, profession, or craft; masterly. • masterful adj. In the manner of a master; very skillful. • masterful adj. Having or showing the qualities of a master vis-a-vis a dependent or subordinate; authoritative; domineering. |
| MATFELONS | • matfelons n. Plural of matfelon. • MATFELON n. the greater knapweed, also MATFELLON. |
| METAFILES | • metafiles n. Plural of metafile. • METAFILE n. graphical information capable of being transferred between systems or software. |
| PLATFORMS | • platforms n. Plural of platform. • platforms v. Third-person singular simple present indicative form of platform. • PLATFORM v. to equip with a platform. |