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A study is a room in a house used for quiet work, reading, or writing. It can also refer to a detailed piece of research or investigation into a specific subject or problem.

A lesson is a specific period of time during which a person is taught a particular skill or subject by a teacher. It can also refer to an important piece of information or a moral principle learned through experience.

A branch of knowledge studied in a school, college, or university. It refers to the specific area of learning that a student focuses on during a class or course.

A mark or score given to a student's work to show how good it is. It also refers to a particular level or year in a school system.

A semester is one of the two main periods into which a school or university year is divided. It usually lasts between 15 and 18 weeks and ends with final exams.

Math is the study of numbers, shapes, and patterns using logic and specific rules. It is a fundamental subject in schools where students learn how to count, calculate, and solve problems.

Physics is the branch of science that studies matter, energy, and how they interact. It explains how things move and how the universe works, including concepts like gravity, light, and heat.

A textbook is a book that contains standard information about a specific subject used by students for study. It is typically used in schools, colleges, and universities to guide the learning process through structured chapters.

An eraser is a small tool, often made of rubber or plastic, used to remove marks made by pencils or pens. It is a common piece of stationery found in classrooms and offices for correcting mistakes on paper or whiteboards.

Paper is a thin material made from wood or cloth used for writing, printing, or drawing. It can also refer to a specific piece of writing, such as an essay for school or a daily newspaper.