/ Dictionary / Index O old school: Meaning and Definition of Find definitions for: old' school" Pronunciation: [key] advocates or supporters of established custom or of conservatism: a military man of the old school. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Old Saxon old school tie Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language