/ Dictionary / Index P pupil: Meaning and Definition of Find definitions for: pu•pil Pronunciation: (py'pul), [key] — n. a person, usually young, who is learning under the close supervision of a teacher at school, a private tutor, or the like; student. an orphaned or emancipated minor under the care of a guardian. a person under the age of puberty orphaned or emancipated, and under the care of a guardian. pu•pil Pronunciation: (py'pul), [key] — n. Anat. the expanding and contracting opening in the iris of the eye, through which light passes to the retina. See diag. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pupil (Thesaurus) pupfish pupilage Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language