Quaffle	KWA ful
Quidditch	KWID itch
Quietus	KWY uh tus
Quirrell	KWIR ul

 

 

 

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