“Diskuze v angličtině Here you can talk about anything in English. Practise your English with other users!”
“In the US, you can use practice for noun and verb. In the UK you must use practice for the noun, and practise for the verb. For example: Shall I practise my handwriting? Practice makes perfect.”
The short answer is, which country has more nuclear weapons? Practice is the correct spelling.
A boot is something you put over your shoe. A trunk is where you put the groceries.