British English and American English - F

British English	American English
faith school	parochial school
fancy dress	costumes
Father Christmas	Santa Claus
favour	favor
favourite	favorite
fibre	fiber
film	film, movie
financial year	fiscal year
fire brigade/service	fire company/department
fire engine	fire truck
first floor	second floor
fish-fingers	fish-sticks
fitted carpet	wall-to-wall carpeting
flannel	face cloth, wash cloth
flask	thermos
flat	apartment, flat, studio
flat tyre	flat tire
flavour	flavor
flexitime	flextime
flick knife	switchblade
flyover	overpass
football	soccer
footway	sidewalk
fortnight	two weeks
foundation course	introductory course
fringe (hair)	bangs
from Monday to Friday	Monday through Friday (Friday included)
frost	ice
fulfil	fulfill
full board (in hotels)	American plan
full stop (punctuation)	period