/ Dictionary / Index T truck bolster: Meaning and Definition of Find definitions for: truck' bol"ster Pronunciation: [key] — Railroads. Railroads. the upper transverse member of a car truck that holds the truck center plate and receives the car's weight. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. truckage truck camper Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language