Advise is a verb and advice is a noun. So advice is what is given and the act of giving advice is called advising (or to advise). Most people don't realize that there is a difference between advice and 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. e.g.
- His advice was sound and everyone listened to him.
- I am seeking your advice because you are more experienced in such matters.
- I turned down that bribe on your advice.
- 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. e.g.
- I would advise you to submit your resignation in view of this scandal.
- 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.
edit Video explaining the differences
This video clearly explains the difference between advise and advice: