- F.B.I. (Federal Bureau of Investigations)
- fabric
- fabricate
- fabulous
- facade
- face fell
- faculties
- fad
- fade
- fail
- failure
- falcon
- faltering
- familiarity
- fantasy
- farfetched
- fashion
- fashionable
- fatal
- fate
- fatigue
- fawn over
- fearless
- feasible
- features
- fed up with
- feel the squeeze
- feint
- fellowship
- felon
- ferocious
- fertilizer
- fervidly
- fiasco
- fibbing
- fiery
- figure out
- finance
- fingerprints
- firmly
- fish hook
- fish tank
- fistful
- flagrant
- flailed
- flashed
- flashed out
- flashy
- flask
- flat tire
- flatter
- flawless
- flecked
- fled
- fledgling
- fleet
- flicker
- flimsy
- flinch
- flip through
- flirt
- flirtatious
- float
- florid
- flu
- flung
- fluorescent
- flurry
- flustered
- foe
- foes
- folding screen
- fondly
- foolishness
- forbid
- forehead
- foreign
- foretold
- forfeit
- forged
- forging
- forked tongue
- formidable
- fortunately
- foster family
- foul
- fowl
- fragile
- framed
- franchise
- frantic
- frantically
- freaked out
- free press
- free speech
- free-for-all
- freezing
- frenzy
- fretting
- frigid
- fringe
- frown
- froze
- fruitful
- fruitlessly
- frumpy
- fugitive
- fuming
- furious
- furnace
- furniture
- furrowed
- fury
- fusing
- fuss
- fuss over
- fussy
