Dictionary

(usually academic) To review materials already learned in order to make sure one does not forget them, usually in preparation for an examination.

Example: I need to study my biology notes.

(academic) To take a course or courses on a subject.

Example: I study medicine at the university.

To acquire knowledge on a subject with the intention of applying it in practice.

Example: Biologists study living things.

To look at minutely.

Example: He studied the map in preparation for the hike.

The action of the verb to study.