Spelling Differences between British and United States

The internet has made it possible for students in Sydney, Australia, to be taught by a teacher in Fort Lauderdale, Florida.  No problem, right? After all, they both speak English.  Well, sometimes spelling differences can become an issue. There are many words that are spelled differently in Canada, England, Australia -- and other countries that teach British English -- than they are in the United States.

Colour or Color?

When learning to spell, the differences between U.K. and U.S. English come to the forefront. The following sentence is incorrect in Kansas but correct in Totonto, London,  Hong Kong, or Melbourne:

• In British English, words that end in –re often end in -er in U.S. English.
  theatre; theater
  
  
• In British English, words that end in –our usually end in –or in U.S. English.
  favour; favor
  
  
• In British English, some nouns that end with –ogue end with –og in U.S. English.
  dialogue; dialog
  
  
• In British English, some nouns that end with –ence are spelled with –ense in U.S. English.
  defence; defense
  
  
• In British English, verbs that can end with either –ize or –ise, always end with –ize in U.S. English.
  magnetise; magnetize