Practise / Practice
In many parts of the English speaking world (UK, Ireland, Australia, Canada, and South Africa) “practice” is the noun, “practise” the verb. However, in the U.S.A the spelling “practice” is more often used for both the noun and the verb. Contrary to popular belief a significant minority of the American population also observe the distinction. If you are not sure about what a verb or noun is, it might be safer to just use the spelling "practice", as many Americans do!
Now test your own knowledge of the use of 'practise' and 'practice':
I need to my English.
Dr Haines has a in Hudson Way.
Magda is a Roman Catholic.