fountain, n. fount, spring, jet d’eau; source, fountainhead, origin; Castalia.

four, n. quaternion, quaternary, tetrad, quadruplet, quartette; quadruplets.  Associated Words:  quadrisection quadripartite, quadripartition, quadruplication, quarter, quadruply, quadruple.

four cities. tetrapolis.

fourfold, a. quadruple, quadruples, quadruplicate.

four-footed, a. quadruped.

four-handed, a. quadrumanous.

four-handed animals.  Quadrumana.

four hundred.  Associated Word:  quadrigenarious.

four-sided, a. quadrangular, square, quadrilateral, tetragonal, tetrahedral.

four-sided figure. square, tetragon, quadrangle, rhombus.

foursquare, a. quadrangular.

fourth, n. quarter.

four years, quadrennium.  Associated Words:  quadrennial, quadrennially.

fox, n.  Reynard, Renard, tod, Charlie.  Associated Words:  vulpine, vulpicide, skulk.

foxglove, n. digitalis.

foxy, a. cunning, sly, wily, crafty.

foyer, n. greenroom.

fracas, n. brawl, uproar, disturbance, quarrel.

fractious, a. unruly, perverse, irritable, ugly, waspish.

fracture, n. rupture, breach, breaking.

fragile, a. brittle, frangible, frail, delicate.

fragility, n. brittleness, frangibility, frailty.

fragment, n. remnant, chip, scrap, flinder, piece, flitter.

fragmentary, a. disconnected, fractional, incomplete.

fragrance, n. perfume, aroma, redolence.  Antonyms:  fetor, stench, inodorousness.

fragrant, a. sweet-smelling, redolent, aromatic, balmy, sweet-scented.  Antonyms:  inodorous, scentless, fetid.

frail, a. fragile, brittle, frangible; feeble, weak, infirm.

frailty, n. fragility, frangibility, brittleness; imperfection, fault, defect.

frame, v. devise, plan, contrive, compose; invent, fabricate; adjust, fit, conform.

framework, n. frame, skeleton.

frank, a. candid, unreserved, outspoken, ingenuous, undisguised.

frankness, n. candor, unreserve, ingenuousness.

frantic, a. distracted, frenzied, crazed, raving.

fraternal, a. brotherly.

fraternity, n. brotherhood, brotherliness.

fraud, n. imposture, deceit, humbug, duplicity, imposition, chicanery, wile, circumvention, guile, hypocrisy, malversation, graft, surreption.  Associated Words:  collude, collusion, collusive, connivance.

fraudulent, a. deceptive, wily, crafty, subtle, surreptitious, knavish.

fraught, a. laden, freighted, charged, pregnant.

fray, n. fight, battle, combat, broil, affray; fret, chafe.

frazzle, v. fray, tatter.

frazzle, n. tag end, tatter.

freak, n. whim, vagary, caprice, whimsey, humor, crotchet, fancy.

freakish, a. whimsical, capricious, fanciful, erratic, crotchety, vagarious.