Noun pupil has 3 senses
  1. student, pupil, educatee - a learner who is enrolled in an educational institution
    --1 is a kind of enrollee
    --1 is a member of teacher-student relation
    --1 has particulars:
     art student; auditor; catechumen, neophyte; collegian, college man, college boy; crammer; Etonian; Ivy Leaguer; law student; major; medical student, medico; nonreader; overachiever; passer; scholar; seminarian, seminarist; sixth-former; skipper; underachiever, underperformer, nonachiever; withdrawer; Wykehamist
  2. pupil - contractile aperture in the iris of the eye
    --2 is a kind of
    aperture
    --2 is a part of iris
  3. schoolchild, school-age child, pupil - a young person attending school (up through senior high school)
    --3 is a kind of young person, youth, younker, spring chicken
    --3 has particulars: boarder; day boarder; latchkey child; schoolboy
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