/ Dictionary / Index D double-trailer truck: Meaning and Definition of Find definitions for: dou'ble-trail•er truck' Pronunciation: (dub'ul trā"lur). [key] See(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. doublet pattern doubletree Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language