Fang	fayng
Fawks	fox
Fidelius	fi DAY lee us
Finite Incantatem	fi NEE tay/ in can TA tem
Firebolt	FI-yer-bolt
Firenze	feer EN zi
Fizzing Wizbees	FIZ eng/ WIZ beez
Flagrate	fluh GRAH tay
Flamel	fle MELL
Fleur	flur
Flitwick	FLIT ik
Florean	flor-EE-an
Fortescue	for-TESS-kyoo
Fred	frehd

 

 

 

The English to American Dictionary (I found this to be the funniest guide!)
Dictionary of English Slang and Colloquialisms of the UK
American/British Dictionary
British to Canadian Vocabulary Guide (you need Acrobat Reader for this)
Other Links