pupil

noun5

1. •
   A learner at a school under the supervision of a teacher.

   • All of these different methods of teaching elementary reading were successful for some pupils, unsuccessful for others. — 1972
2. •
   One who studies under supervision of a renowned expert in their field.

   • Plato was Socrates' pupil, and in turn Aristotle was Plato's pupil.
3. •
   The hole in the middle of the iris of the eye, through which light passes to be focused on the retina.
4. •
   The central dark part of an ocellated spot.
5. •
   (no longer used) An orphan who is a minor and under the protection of the state.