Advise can be a noun meaning to give advice, counsel, warn, recommend, or simply inform. It is also used as a verb meaning to give someone advice. In formal settings, advise means to give someone official information. When trying to be formal though, some writers incorrectly use advise as a synonym for “told” although only information and no advice has been communicated.
However, advise should not be confused with the noun, advice. Advice denotes an opinion which someone offers about what you should do or how you should act in a particular situation.