| ANTIFLU | • antiflu adj. Acting against or serving to prevent flu. • ANTIFLU adj. combating the flu. |
| ANTIFUR | • antifur adj. Opposed to the killing of animals for their fur. • ANTIFUR adj. opposed to wearing animal fur. |
| AQUAFIT | • aquafit n. Alternative form of aquafitness. • AQUAFIT n. a type of aerobic exercise performed in water. |
| FAITOUR | • faitour n. (Archaic) A charlatan or imposter, especially one pretending to be ill, or to tell fortunes. • FAITOUR n. an imposter, also FAITOR. |
| FATIGUE | • fatigue n. A weariness caused by exertion; exhaustion. • fatigue n. (Often in the plural) A menial task or tasks, especially in the military. • fatigue n. (Engineering) Weakening and eventual failure of material, typically by cracking leading to complete… |
| FATUITY | • fatuity n. Weakness or imbecility of mind; stupidity. • fatuity n. Something fatuous; a stupid idea or utterance. • FATUITY n. complacent stupidity. |
| FAUNIST | • faunist n. One who describes the fauna of a country. • FAUNIST n. one who describes the fauna of a country. |
| FAUTING | • FAUT v. (Scots) to fault. |
| FAUVIST | • fauvist adj. Of or pertaining to fauvism. • fauvist n. An artist who used this style. • FAUVIST n. a member of a group of expressionist painters, also FAUVE. |
| FIAUNTS | • fiaunts n. Plural of fiaunt. • FIAUNT n. (Spenser) a fiat. |
| FISTULA | • fistula n. (Medicine) An abnormal connection or passageway between organs or vessels that normally do not connect. • fistula n. (Rare) A tube, a pipe, or a hole. • fistula n. (Christianity, historical) The tube through which the wine of the Eucharist was once sucked from the… |
| FLUTINA | • flutina n. (Music) An early precursor to the diatonic button accordion, having one or two rows of treble buttons… • FLUTINA n. a type of accordion. |
| FUSTIAN | • fustian n. Originally, a kind of coarse fabric made from cotton and flax; now, a kind of coarse twilled cotton… • fustian n. A class of fabric including corduroy and velveteen. • fustian n. (Figuratively) Inflated, pompous, or pretentious speech or writing; bombast; also (archaic), incoherent… |
| INFAUST | • infaust adj. (Archaic) unlucky, unfortunate, ill-omened; unpropitious; sinister. • INFAUST adj. (Latin) unlucky; ill-omened. |
| TARTUFI | • TARTUFO n. (Italian) a dessert of light mousse-like chocolate. |
| UNFAITH | • unfaith n. Absence of faith. • UNFAITH n. a lack of faith. |