“Advice” or “Advise”?
Advice is a noun and means a suggestion about what someone should do. It is uncountable:
Correct: She gave good advice.
Incorrect: Let me give you an advice
If we want to use advice in a countable way, then we use the phrase a piece of advice:
Example: I have two pieces of advice for you about the holiday.
We use the verb advise to mean ‘to give someone advice’:
Example: I advise you to be careful.
Example: They finally did what we advised.
