Today, let's look at some differences between American and British English.
First of all, some common spelling differences.
Examples of words that end in -~or in American English and -~our in British English:
color/colour, humor/humour, flavor/flavour
Examples of words that end in -~ize in American English and -~ise in British English:
Next, some vocabulary differences
American English - hood / British English - bonnet
American English - trunk / British English - boot
American English - truck / British English - lorry
Pronunciation differences between the two nations are also plentiful. One that stands out for me is the pronunciation of "herb". American English employs a silent h sound so the word is pronounced "~erb". In the UK, the word is said with a hard aitch.
There are differences between all English speaking nations. Australia for example has many of its own unique words and phrases. Don't worry too much about learning the ins and outs of the different vocabulary and phrases that each country uses. If you conduct business with the UK and America it will add finesse to your English skills if you are aware of the spelling differences, but it won't be the end of the world if you confuse the two. If you say trash to an English person, they will understand what you mean. But whatever you do, make sure you don't say soccer!