| DESULFURS | • desulfurs v. Third-person singular simple present indicative form of desulfur. • DESULFUR v. to free from sulphur. |
| DREADFULS | • dreadfuls n. Plural of dreadful. • DREADFUL n. a lurid novel. |
| FELDGRAUS | • feldgraus n. Plural of feldgrau. • FELDGRAU n. (German) the grey colour of German military uniforms. |
| FLOUNDERS | • flounders v. Third-person singular simple present indicative form of flounder. • Flounders prop.n. A surname. • FLOUNDER v. to struggle clumsily. |
| FLUIDISER | • fluidiser n. Alternative form of fluidizer. • FLUIDISER n. an apparatus in which fluidisation is carried out, also FLUIDIZER. |
| FLUIDRAMS | • fluidrams n. Plural of fluidram. • FLUIDRAM n. a unit of liquid capacity. |
| FLUORIDES | • fluorides n. Plural of fluoride. • FLUORIDE n. a compound of fluorine, also FLUORID. |
| FLUSTERED | • flustered adj. Confused, befuddled, in a state of panic by having become overwrought with confusion. • flustered v. Simple past tense and past participle of fluster. • FLUSTER v. to put into a state of nervous confusion. |
| GOURDFULS | • gourdfuls n. Plural of gourdful. • GOURDFUL n. the contents of a gourd. |
| SUBFOLDER | • subfolder n. (Computing) A folder within another folder. • SUBFOLDER n. a subdivision of a folder. |
| UDDERFULS | • udderfuls n. Plural of udderful. • UDDERFUL n. the contents of a full udder. |
| UNDERSELF | • underself n. One of several conscious selves supposed to occupy the same brain, in early theories of multiple personality. • UNDERSELF n. the subconscious self. |
| UNFOLDERS | • unfolders n. Plural of unfolder. • UNFOLDER n. one who unfolds. |
| URNFIELDS | • urnfields n. Plural of urnfield. • URNFIELD n. a late Bronze Age cemetery containing funerary urns. |