foster

rear; bring up (for a certain period only); encourage; promote the development of (feelings or ideas); Ex. help foster friendly relations; ADJ: giving parental care although not related by blood; Ex. foster parents

foul

very bad or disagreeable; very dirty; Ex. foul smell/flavor/temper/language/air/deed/weather/means; N. act against the rules; V. make or become foul; commit a foul

founder

person who establishes (an organization or business)

fracas

brawl(noisy quarrel or fight) in which a number of people take part; melee

fractious

unruly; peevish; cranky; bad-tempered; Ex. fractious horse

frail

weak; N. frailty

franchise

right or privilege granted by authority; right to vote; license to sell a product in a particular territory

frantic

wild; distraught as from fear or worry; Ex. frantic with fear

fraudulent

cheating; deceitful; Ex. fraudulent means; N. fraud: deception; swindle

fraught

filled (with something unpleasant); full; Ex. fraught with danger and difficulties; CF. freight

fray

brawl; fight; V: wear away or unravel by rubbing; have loose threads developing; cause to become worn out (a person’s temper or nerves); CF. rub

freebooter

pirate or plunderer who makes war in order to grow rich

frenetic(phrenetic)

frenzied; frantic