One who, or that which, trails.
- A large transport vehicle designed to be hauled by a truck or tractor.
- A furnished vehicle drawn by a truck or automobile and used when parked as a dwelling or office.
- A short filmed advertisement for a movie; a preview.
- A short, blank strip of film at the end of a reel.
- To transport by a trailer: trailered the boat to the beach.
- To travel or live in a trailer.