/ Dictionary / Index P preboard: Meaning and Definition of Find definitions for: pre•board Pronunciation: (prē-bôrd', -bōrd'), [key] — v.t. to put or allow to go aboard in advance of the usual time or before others: Handicapped passengers will be preboarded. —v.i. to go aboard in advance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Preble prec. 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