noun (n)

• one of the two competitions in the next to the last round of an elimination tournament(noun.event)

  Synonym:
  semifinal
  

  source: wordnet30
• a truck consisting of a tractor and trailer together(noun.artifact)

  Synonym:
  articulated lorry, rig, tractor trailer, trailer truck, trucking rig
  

  source: wordnet30
• a trailer having wheels only in the rear; the front is supported by the towing vehicle(noun.artifact)

  Synonym:
  semitrailer
  

  source: wordnet30