Word 1:Pupil (PYOO puhl)
Meaning 1: The expanding and contracting opening in the iris of the eye, through which light enters the eye
Example Sentence: Nature has defined it so that the pupil gets larger as light levels decrease to let more light into the eye.

Meaning 2: A young person taught by a tutor.
Example Sentence: She is a pupil at the primary school.

Word 2: Student (STOOD n’t, STYOOD n’t)
Meaning 1: A person who attends a school, college or university.
Example Sentence: He has enrolled as a part- time student at the night school.

Word 3:Scholar (SKAHL uhr)
Meaning 1: A specialist in a special branch of studies.
Example Sentence: He was a visiting scholar at the Jamia MiliaIslamia.

Meaning 2: A holder of a scholarship.
Example Sentence: He was scholar at one of the grammar schools at Oxford.

Example Sentence using all the words:
As he was frequently in the company of scholar and was a student of Latin, he enrolled his children where there the best public school pupils.