an unpowered vehicle towed by another, in particular.
an excerpt or series of excerpts from a movie or program used to advertise it in advance; a preview.
Both the featurette and the film's widescreen theatrical trailer appear on the pan-and-scan side of the platter.
a thing that trails, especially a trailing plant.
In the largest ones, I usually include one or two flags, two or three fillers, one or two contrast and accent plants, and two or three trailers and weavers.