Advice

'Advice' is a noun and refers to a suggestion or recommendation given to someone about what they should do in a particular situation. For example, "I received some good advice from a friend on how to save money."

'Advise' is a verb and means to give advice or to recommend a course of action. It is used when someone is providing guidance or offering suggestions. For instance, "I would advise you to study for the exam well in advance."

In summary, 'advice' is the noun form, while 'advise' is the verb form.