/ Dictionary / Index P preprogram: Meaning and Definition of Find definitions for: pre•pro•gram Pronunciation: (prē-prō'gram, -grum), [key] — -grammed -gramed, -gram•ming -gram•ing. to program in advance: to preprogram a manufacturing process. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. preprofessional prep school Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language