British and American.Which words are diffrent?

I've known a few words which that are written differently. The first is English British, the second is American! Colour /Color Practise/Practice tyre/tire raise/ rise surname\last name trousers\pants flat\apartment What else?Help me found out it!Just common words!

British and American English. Which words are different?

I've known a few words which write diffrent are spelled differently, in comparison between British/The Queens English and American English.

(Jonathan is correct, English is proper English and American is refered to as American English).

The first is being English British, followed by the second is American English:

Colour/Color
Practise/Practice
tyre/tire raise/rise
surname\last name
trousers\pants
flat\apartment

What else?
Help me found out it! Just just common words and terms, please.

Football / Soccer 
Post/Mail
Pub/ Bar (a pub in America is strictly an Irish Pub to drink beers).
Fancy Dress/ Costum Ball
Mate/ Pal or Guy
Arse / Ass
Chat up / Talking too  (referring to dating and talking to someone to get to know them as an interest)

Smart - in the US it means you're smart, in the UK it means you're well dressed.
Torch / Flashlight

Lift / Elevator

British and American Words. So Different!  Which words are diffrent?

I've known a few words which are used differently by the British and Americans. write diffrent.The first is British and the second is American!

Colour/Color

Practise [verb] practice [noun]/Practice

tyre/tire

raise/ rise  [We all use these words.  Perhaps you misunderstood.  "raise" have several meanings.

surname\last name

trousers\pants

flat\apartment

What else? Can you help me? found out it!Just the common words please.

license/licence /licence

defense/defence /defense

petrol/gasoline

trolley/push cart

biscuit/cookie
sweet/candy

trunk calls/international calls

Car parts

accelerator/gas pedal
lorry/truck or semi

bonnet/hood

boot/trunk 

bumper/fender

windscreen/windshield 

glove box/glove compartment

gear lever/stick [shift]

For more see http://www.oxforddictionaries.com/us/words/british-and-american-terms