| ASTROFELLS | • ASTROFELL n. (Spenser) an unidentified bitter starlike plant, possibly aster, also ASTROPHEL. |
| CROSSFALLS | • crossfalls n. Plural of crossfall. • CROSSFALL n. the transverse inclination on a road. |
| FAIRYFLOSS | • fairyfloss n. Alternative spelling of fairy floss. • fairy␣floss n. (Australia) Heated sugar spun into thin threads and collected into a mass, usually on a stick. • FAIRYFLOSS n. (Australian) candyfloss. |
| FALSEWORKS | • falseworks n. Plural of falsework. • false␣works n. Construction works, such as scaffolding, to facilitate the erection of the main work. • FALSEWORK n. a temporary framework used to support a building during construction. |
| FAVOURLESS | • favourless adj. (Archaic) unfavoured; having no countenance or support. • favourless adj. (Archaic) unpropitious; unfavourable. • FAVOURLESS adj. without favour, also FAVORLESS. |
| FLASHOVERS | • flashovers n. Plural of flashover. • flash␣overs n. Plural of flash over. • FLASHOVER n. an electric discharge over the surface of an insulator. |
| FLAVORISTS | • flavorists n. Plural of flavorist. • FLAVORIST n. a person who creates flavourings for drinks, perfumes, etc., also FLAVOURIST. |
| FLAVORLESS | • flavorless adj. Lacking taste or flavor; without seasoning, spice, or discernible qualities of taste. • flavorless adj. Flat; lacking character or definition. • flavorless adj. (Physics) Without flavor. |
| FLUORSPARS | • fluorspars n. Plural of fluorspar. • FLUORSPAR n. a mineral, calcium fluoride, also FLUOR, FLUORITE. |
| FORESLACKS | • foreslacks v. Third-person singular simple present indicative form of foreslack. • FORESLACK v. (obsolete) to become slack or neglectful, also FORSLACK. |
| FORESTALLS | • forestalls v. Third-person singular simple present indicative form of forestall. • FORESTALL v. to prevent. |
| FORMALISES | • formalises v. Third-person singular simple present indicative form of formalise. • FORMALISE v. to make formal, also FORMALIZE. |
| FORMALISMS | • formalisms n. Plural of formalism. • FORMALISM n. the practice or the doctrine of strict adherence to, or dependence on, external forms, esp. in matters of religion. |
| FORMALISTS | • formalists n. Plural of formalist. • FORMALIST n. a person having exaggerated regard to rules or established usages. |
| FORMALNESS | • formalness n. Quality of being formal. • FORMALNESS n. formality. |
| PASSIFLORA | • passiflora n. (Botany) Any of the genus Passiflora of passionflowers. • Passiflora prop.n. A taxonomic genus within the family Passifloraceae – the passionflowers. • PASSIFLORA n. a genus of plants, including the passion flower. |
| SAFFLOWERS | • safflowers n. Plural of safflower. • SAFFLOWER n. a thistle-like plant yielding an orange dye. |
| SALIFEROUS | • saliferous adj. Yielding or containing salt; saliniferous. • SALIFEROUS adj. containing salt. |
| SHORTFALLS | • shortfalls n. Plural of shortfall. • short-falls n. Plural of short-fall. • SHORTFALL n. the fact or amount of falling short. |
| SOLFATARAS | • solfataras n. Plural of solfatara. • SOLFATARA n. (Italian) a volcanic vent emitting only gases. |