Word meanings in different countries

This website lists language differences between UK and UK. Its quite surprising how different some things can get. I never knew a 'pavement' was what I call a road in the US. Or that 'Headmaster' was the British way of referring to a 'Principal'. Or how much Singaporean English draws elements from both countries. I always thought we followed the British style but apparently not always.

http://www.hintsandthings.co.uk/library/WORDS2.htm
From the same site:
http://www.hintsandthings.co.uk/library/words3.htm