- filibuster
- finagler
- financier
- find
- finagle
- finish
- fire
- fire-bug
- fire-water
- firefighter
- fireside
- first
- first floor
- first-lady
- fish-story
- fisher
- fit
- fix
- fix-up
- fixed
- fixer
- flack
- flag-day
- flagman
- flamboyant
- flannel
- flash
- flat
- flew
- flicker
- flippancy
- flood
- flood-light
- floor-leader
- floozie
- flophouse
- fluey
- flat-footed
- flea-bitten
- fleshings
- flip
- flippant
- floor-walker
- floozy
- flossy
- flotsam
- flour
- fold
- folderol
- fool
- foozle
- foregather
- forehanded
- foreign
- forgather
- flower-girl
- fluky
- flush
- fly
- fob
- flattop
- flea-bag
- flop
- flume
- flurry
- folksy
- font
- foot-loose
- footstool
- forked
- forswear
- forswore
- forsworn
- forty-niner
- four-square
- fourth
- fox
- frail
- frame
- frame-up
- franchise
- frankfurt
- frankfurter
- fraternal
- fraternity
- frazil
- freedom ride
- freight
- freight train
- freshen
- freshwater
- frogskin
- fudge
- freeze-dry
- frisk
- freight car
- frier
- fritz
- froe
- front-pager