- to offer advice (to a person or persons); counsel: he advised the king, to advise caution, he advised her to leave
- (transitive) sometimes followed by of: formal to inform or notify
- (intransitive) followed by with: chiefly US or obsolete to consult or discuss
WordReference Random House Learner's Dictionary of American English © 2014
to give counsel or advice (to), esp. to recommend as wise or sensible: [~ + object]I advised secrecy.[no object]We did as she advised.[~ + object + to + verb]I advised the new student to take a music course.[~ + verb-ing]I advised taking a music course.[~ + against + object]I advised against taking too many courses.
to give (a person, group, etc.) information or notice; tell or inform: [~ + object + of + object]The police advised the suspect of his rights.[~ + object + that clause]They advised him that he might face imprisonment.
advise is a verb, advice is a noun, advisable is an adjective:I advise you to study harder. My advice to you is that you should study harder. It is advisable that you study harder.