A person who is registered in a school or other educational institution is called a student.
An operational definition just explains how to measure a notion; a conceptual definition explains what the idea signifies. By explaining how your constructions connect to other constructs, a conceptual definition explains what your constructs are. This explanation is abstract, as are all of the structures it discusses. A student is a person who is learning something, whether it is a skill or a specific subject.
Student(noun) a learner, pupil, scholar, especially one who attends school or who seeks information from books or from professional professors; as, students of an academy, college, or university; a medical student; a hard student.
Thus this is the conceptual definition of students.
