What is the meaning of Pupil?

A learner at a school under the supervision of a teacher.

One who studies under supervision of a renowned expert in their field.

An orphan who is a minor and under the protection of the state.

The hole in the middle of the iris of the eye, through which light passes to be focused on the retina.

The central dark part of an ocellated spot.

orphan

pupil (the hole in the middle of the iris of the eye)

pupil (aperture of the eye)

minor, generally a prepubescent child over the age of 5

favoured student, protégé

institutionalised pupil (one who receives an upbringing or education in an institution)

orphan

pupil (the hole in the middle of the iris of the eye)

favorite son, favored student, protégé, teacher's pet

pupil (learner)

pupil

Source: wiktionary.org