WordRel.com

• a trailer having wheels only in the rear; the front is supported by the towing vehicle

  synonym	semitrailer
  holo part	articulated lorryrigsemitractor trailertrailer trucktrucking rig
  hypernym	trailer

• a truck consisting of a tractor and trailer together

  synonym	articulated lorryrigtractor trailertrailer trucktrucking rig
  hypernym	motortrucktruck
  hyponym	tandem trailer
  mero part	semisemitrailertrailer

• one of the two competitions in the next to the last round of an elimination tournament

  synonym	semifinal
  holo part	elimination tournament
  hypernym	match