›MARKETINGan advertisement for a film, or television or radio programme, consisting of short parts taken from it: You can watch a trailer for the new series online.Hollywood has been circulating movie trailers on the Web for years.
›TRANSPORTthe separate back part of a large truck used for carrying goods: It isn't cost-effectitve to have trucks carrying half-empty trailers for part of their journey.
›TRANSPORT a box on wheels that is pulled by a car and is used for taking things from one place to another