fruiterer, n. fruit-dealer, costermonger, coster.

fruitful, a. prolific, productive, fertile, frugiferous, fecund, bountiful.

fruitless, a. unfruitful, infertile, infecund, acarpous, barren; unavailing, useless, vain.

fruit-seller, n. fruiterer, coster, costermonger (peddler).

fruit sugar. levulose.

frump, n. (Colloq.) gossip.

frustrate, v. baffle, defeat, disappoint, foil, balk, thwart, circumvent, nullify.

frustration, n. defeat, disappointment, balking, foiling, nullification.

frying-pan, n. spider, skillet.

fuddled, a. muddled, tipsy, drunk, intoxicated, boozy, groggy.

fudge, n.  See balderdash.

fuel, n. combustibles.

fugitive, a. fleeing; evanescent, short-lived, fugacious, volatile, ephemeral, impermanent, transient.

fugitive, n. runaway, runagate, renegade, deserter.

fulfill, v. accomplish, complete, consummate, realize, satisfy, fill, answer, meet; discharge, perform.

fulfillment, n. consummation, accomplishment, fruition, realization; discharge, performance.

full, a. filled up, replete; copious, ample, plethoric, plenteous, bountiful, abundant, liberal; complete, plenary; sated, surfeited, cloyed, glutted, gorged, saturated; engrossed with.

full swing. carte blanche, liberty, unrestraint.

fulsome, a. offensive, nauseous, disgusting, excessive, gross, immoderate.

fume, n. exhalation, reek, smoke, steam, vapor.

fume, v. smoke, reek; storm, rage, bluster.

fun, n. merriment, mirth, gayety, frolic, jest, pleasantry, drollery, waggery, waggishness, facetiousness, divertisement amusement, relaxation, jocularity.

function, n. duty, province, office, business, part; discharge, performance, execution; party, entertainment, festivity, reception.

fundament, n. buttocks.

fundamental, a. basal, elementary, original, essential, radical.

fundamentally, adv. primarily, essentially, radically.

funeral, n. obsequies.

funeral director. undertaker.

funeral oration. eloge.

funeral pile. pyre.

funeral song. dirge, elegy, requiem.

funereal, a. exequial, mournful, solemn, sad.

Fungi, n. pl.  Thallophytes (toadstools_, mushrooms, etc.).  Associated Words:  spawn, spore, mycophagy, fungivorous, mycetophagous, amanitine, mycelium, fungic, fungicide, fungoid, fungiform, fungous, mycologist.

fungology, n. mycology.

fungus, n. thallogen, thallophyte; granulation, proud flesh.

funk, v. stink; (Colloq.) flinch, recoil, shrink back.

funk, n. (Colloq.) recoiling, flinching; shirk, coward.

funnel, n. tunnel.

funnel-shaped, a. infundibular, infundibulate, infundibuliform.

funny, a. comic, comical, amusing, droll, laughable, farcical, witty, jocular, jocose, ludicrous, burlesque, facetious, risible, absurd, waggish, humorous, jesting.