Advice and advise not only have different meanings but are also pronounced differently. Advise is a verb, and advice is a noun. So advice is what is given, while the act of giving advice is called advising (or to advise).
|Part of speech||Noun||Verb|
|Meaning||recommendation, counsel, opinion offered as guidance||The act of giving advice|
edit Differences in usage and meaning
Advice is a noun. It is a suggestion or recommendation.
- His advice was sound and everyone listened to him.
- I am seeking your advice because you are more experienced in such matters.
- She made use of the suggestions she found in the advice column.
- Take my advice and quit your day job to focus on your startup business.
Advise is a verb. It means "to give advice" and therefore refers to the act of giving advice.
- I advise you to resign from your position.
- My lawyer has advised me to settle this matter out of court.
- She has a strictly advisory role in this project.
- I am advising three doctoral students for their thesis.
- I was advised to visit the local embassy.
This video clearly explains the difference between advise and advice:
"Advice vs Advise." Diffen.com. Diffen LLC, n.d. Web. 17 Sep 2014. < http://www.diffen.com/difference/Advice_vs_Advise >