devotion of time and attention to gaining knowledge of academic subject. Rooms that a person studies or reads in. To focus on learning something usually at school.

make idea or situation clear to someone by describing it in more detail.

(of book etc.) prepared and issued for public sale. To prepare and make available a book magazine etc..

(of value) assigned to something by inference from value of products to which it contributes. To place the fault or responsibility for.

not same as another or each other.

Used to add new (often different) information.

portray as wicked and threatening.

Substance in the body that may cause heart disease.

Having a big effect on (person, the future).

disorder of structure in human. Illnesses that affects a person, animal, or plant.

continuous physical force exerted on object. To apply force to something.

Connected to; in association with. To demonstrate a logical relationship between.

Reason for which something is done; aim; goal. have as intention or objective.

organized group of people. Groups of people with particular purposes.

place, person, or thing from which something comes or can be obtained. To get, e.g. a raw material, from somewhere.