Hello Matty. Practice is used both as a verb and as a noun. ( AmE)
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AnonymousMatty - you are correct and Nugso is wrong. When used as a verb, the correct spelling is 'practise'. SInce I live in UK, I cannot comment on how this word is speclt in the US.Then perhaps you should limit your comments to confirming correct spelling in the UK and not run around saying other answers, which ar