set or category. Groups of people who study together in school. To rank people in society from high to low.

prepare and issue book etc. for sale.

To talk about seriously or in great detail.

occupation, profession, or work of teacher. To help someone learn or do something.

branch of science concerned with nature and properties of matter and energy. The study of heat, light, and energy on objects.

(Person) helping another, usually as a job. person who ranks below senior person.

Courteous expression of esteem, or regard.

very unusual or remarkable. item in company's accounts.

Being of less importance than something else. secondary coil or winding in electrical transformer.

Branch of math dealing with rates of change, etc..

To be given or to earn something through efforts.

occupation or activity of preparing and issuing books. To prepare and make available a book magazine etc..

planned or meant. person one intends to marry. To plan or want to do something.

achieved or maintained by careful and deliberate effort. To focus on learning something usually at school.

Being sympathetic. ability to understand something. To know the meaning of language, what someone says.