British v. American English

For example the American for 'pram' is 'carriage' (an old-fashioned word to British ears), a 'conker' is a 'chestnut' and a 'plaster' is a 'bandage' (something a British hospital would only use for serious wounds, not just a scratch or bruise).

George Bernard Shaw was perhaps right when he observed that England and America were 'two countries separated by the same language'.

See http://www.optimnem.co.uk/blog/2006/10/british-v-american-english.html