study.

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

Students are expected to start studying for final exams in March.

I need to study my biology notes.

To take a course or courses on a subject.

I study medicine at the university.

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

Biologists study living things.

In 2015, scientists found that 82 percent of glaciers studied in China had decreased in size.

To look at carefully and minutely.

He studied the map in preparation for the hike.

To fix the mind closely upon a subject; to dwell upon anything in thought; to muse; to ponder.

To endeavor diligently; to be zealous.

Mental effort to acquire knowledge or learning.

The study of languages is fascinating.

The act of studying or examining; examination.

I made a careful study of his sister.

Any particular branch of learning that is studied; any object of attentive consideration.

A room in a house intended for reading and writing; traditionally the private room of the male head of household.

Father spends all his time in the study poring over manuscripts.

An artwork made in order to practise or demonstrate a subject or technique.

The human face, bearing an expression which the observer finds amusingly typical of a particular emotion or state of mind.

Geoffrey's face was a study.

Geoffrey's face was a study in amazement [or in bewilderment, irritation, distress etc.]

A piece for special practice; an etude.

An academic publication.

That new study on noncommutative symmetries looks promising.

One who commits a theatrical part to memory.

An endgame problem composed for artistic merit, where one side is to play for a win or for a draw.

A state of mental perplexity or worried thought.

Thought, as directed to a specific purpose; one's concern.

My study was to avoid disturbing her.