/ Dictionary / Index J junior high school: Meaning and Definition of Find definitions for: jun'ior high' school" Pronunciation: [key] a school attended after elementary school and usually consisting of grades seven through nine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. junior counsel juniority Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language