Translate trailer | into French | into German | into Italian | into Spanish Definition of trailer
noun
1an unpowered vehicle towed by another, in particular. the rear section of a tractor-trailer. a platform for transporting a boat. an unpowered vehicle equipped for living in, typically used during vacations.
2an excerpt or series of excerpts from a movie or program used to advertise it in advance; a preview.
3a thing that trails, especially a trailing plant.
verb
[with object] 1advertise (a movie or program) in advance by broadcasting excerpts or details.
2transport (something) by trailer.
