| fauteuil | n. | wooden armchair with open sides | ||
| fazenda | n. | [Portuguese] estate or large farm | ||
| feather | v. | to turn the oar after a stroke so that it stays horizontal over the water’s surface during the return stroke whilst rowing | ||
| febricule | n. | very mild fever | obsolete | |
| feck | n. | efficacy; vigor | ||
| feckless | adj. | irresponsible, unreliable | ||
| feculent | adj. | full of dregs or feces | ||
| fecund | adj. | capable of giving birth or of producing fruit; fruitful, prolific | ||
| feist | n. | mongrel dog; truculent person or animal | ||
| felicitation | n. | congratulation | ||
| fellah | n. | peasant, worker, or farmer of Egypt or North Africa | ||
| felloe | n. | outer part of wheel into which the spokes are inserted | ||
| fellwalker | n. | person who walks over hills or high moors | British | |
| fenugreek | n. | legume native to western Asia; seeds of this plant which are used in cooking and medicine | ||
| feretory | n. | reliquary; part of church where relics are kept | ||
| ferine | adj. | feral, untamed, of or related to the state of animals existing in nature | ||
| feringhee | n. | foreigner, European, white person | slang | |
| ferrety | adj. | of or like a ferret | ||
| ferrididdle | n. | chipmunk, red ground squirrel | ||
| ferruginous | adj. | of the color of rust, reddish brown; containing rust or iron oxides | ||
| ferule | n. | rod, cane, or flat piece of wood (esp. a ruler) used to punish | ||
| fervid | adj. | passionate or zealous | ||
| fescue | n. | pointer of straw, wire, etc. | ||
| fetiparous | adj. | giving birth before the young are fully developed | biology | |
| fetlock | n. | joint on horses between the hoof and the knee or hock; fur tuft growing at this joint | ||
| fettle | v. | to make ready, to prepare | ||
| fettle | n. | condition, state | ||
| fiacre | n. | small four-wheeled horse-drawn carriage for hire | ||
| fichu | n. | triangular woman’s scarf | ||
| fides Punica | n. | treachery, lit. “the faith of the Carthaginians” or “Carthaginian honesty” | Latin | |
| fiducial | adj. | of a fixed point used for comparison; based upon trust | ||
| fiduciary | adj. | of a relationship in which one person holds property on behalf of another | ||
| fifth chain | n. | chain used connecting lead horse to pole when five horses are used in a team | ||
| filé | n. | powdered leaves of sassafras | ||
| filibuster | n. | speech obstructing progress in legislature; unauthorized military adventurer in foreign land; freebooter | ||
| filigree | n. | intricate and delicate decoration made of metal wire; ornate or intricate design | ||
| fillip | n. | motion made by bending last joint of finger or the nail of the finger against the thumb and then suddenly releasing it; to strike with a nail snapped from the end of the thumb | ||
| Fimbulwinter | n. | the harsh three years long summerless winter which precedes the end of the world | ||
| finca | n. | large estate in Spain or Hispano-America | ||
| finical | adj. | finicky | ||
| fipple | n. | mouthpiece of certain recorders and flutes, with a fixed sharp edge against which the blown air is directed | ||
| firedog | n. | andiron | ||
| firk | v. | to move suddenly, to be lively; (obsolete) to cheat | ||
| firkin | n. | small cask for liquids, etc., holding a quarter of a barrel | ||
| firth | n. | narrow sea inlet; estuary | ||
| fishmonger | n. | seller of seafood | ||
| fissiparous | adj. | reproducing by fission | ||
| fixie | n. | fixed-gear bicycle | ||
| fjeld | n. | elevated plateau barren of all except rocks | ||
| flageolet | n. | small flute blown from end with four finger holes atop, and two below |