- feminism
- femme fatale
- fence
- fermentation
- ferry
- fertile milch-cow
- fervor
- fetidity
- feud
- fever
- fiat
- fibromyalgia
- fiesta
- fiesty
- fight
- fight to the finish
- figuration
- foreign
- financier
- find one's level
- find one's tongue
- find one's voice
- findable
- finest gold
- fingerling
- finished
- fiord
- fireless
- fireworks
- firing squad
- firm
- firmware
- first born
- first floor
- first lesson
- first name
- first offender
- fish-spawn
- fitness
- fitty
- five feet
- five musical instruments
- five sections
- five senses
- fix
- fixated
- fixation
- fixed
- fizz
- fizzle
- flabby
- flag of convenience
- flag-hoisting
- flagellate
- flagitiously
- flakes of rice
- flaky
- flame thrower
- flatboat
- flattery
- flatulence
- flatulent
- flaunt
- flavouring
- flay
- flies
- flight
- flight sergeant
- flimsy
- flip-flop
- florid
- florist
- flow of saliva
- flower carpet
- flower people
- flower vine
- flowery
- flowing water
- flu
- fluctuate
- fluent
- fluid
- flummox
- flunkey
- flying visit
- flysheet
- foam rubber
- foamy
- fob
- focal length
- fog
- food for worms
- footling
- footstep
- foppish
- fore-gift
- forecast
- forehead
- forhood
- forlorn