trailer

Noun

• a wheeled vehicle that can be pulled by a car or truck and is equipped for occupancy

• a large transport conveyance designed to be pulled by a truck or tractor

• an advertisement consisting of short scenes from a motion picture that will appear in the near future

• someone who takes more time than necessary; someone who lags behind

Related words

• Synonyms: 
  house trailer , preview , prevue , dawdler , drone , laggard , lagger , poke