noun
1
BAD : I adviced him to tell the police.
GOOD : I advised him to tell the police.
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Advice is a noun. Advise is a verb.
2
BAD : She gave me a good advice.
GOOD : She gave me some good advice.
BAD : It is full of good advices on healthy eating.
GOOD : It is full of good advice on healthy eating.
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Advice is an uncountable noun: 'I could do with some advice.'
Compare: 'She gave me a good piece of advice.'