Difference between American English (AmE) and British English (BrE)... For all the examples I will say AmE first and then BrE. Sometimes it is just the spelling (color / colour), (realize / realise), which you can learn the -or/-our and -ize/-ise difference Sometimes it is a different word, but similar. It is pronounced and spelt differently. For example (mom / mum), (airplane / aeroplane). In BrE for some verbs, instead or adding -ed, we add -t (although some people still add -ed): (spelled / spelt), (burned / burnt). Some words are completely different: (candy / sweets), (cookie / biscuit), (sidewalk / pavement), (sneakers / trainers) Words can be used differently, like AmE usually use "What's up?" to mean "How are you?", but BrE can use it to mean "What is wrong?". There are some words like this: in AmE (practice = noun or verb), in BrE (practice = noun, practise = verb) And you also have the same word pronounced differently, like with 'leisure', 'data', etc. Like with 'water': AmE: wot-er, BrE: waw-ter. For example, AmE say: eraser, BrE say: rubber. But in US 'rubber' = condom. So we will ask for a rubber at school, but in the US, they won't.

The pronunciation and grammar! For example: In american english you always pronunce "R" in words but in british when "R" is located at the end of word you don't pronunce the "r" so that is interesting. Regards!

Some spelling Carmen, and some grammar rules. Many people think that British English has powerful Charm, and an air of Sophistication, and I agree with that. American English sounds a little more "plain" and it is normally spoken, just a little slower I think. .

There are some superficial differences, but an American usually has no trouble understanding a Briton and I guess vice versa. So, if you are concerned about needing to learn different dialects of English, it need not concern you. They are all mutually intelligible.