trailer

• POS: Noun
• HYPHEN: trail=er

CIDE DICTIONARY

trailer, n. 

 One who, or that which, trails.  [1913 Webster]

trailer, n. 

•  a wheeled vehicle without a motor, designed to be drawn by a motor vehicle in front of it;  [PJC]
•  A short blank segment of movie film attached to the end; -- used for convenient insertion of the film in a projector.  [PJC]
•  A short film consisting primarily of one or more short portions of a film, used in promotions or advertisements shortly before initial release of a film.  [PJC]
•  A part of an object which extends some distance beyond the main body of the object; as, the trailer of a plant.  [1913 Webster]

trailer park. An area equipped to accommodate trailers{2}, often with outlets supplying electrical power and water. Called also trailer camp, trailer court.

OXFORD DICTIONARY

trailer, n.
1 a person or thing that trails.
2 a series of brief extracts from a film etc., used to advertise it in advance.
3 a vehicle towed by another, esp.: a the rear section of an articulated lorry. b an open cart. c a platform for transporting a boat etc. d US a caravan.
4 a trailing plant.

THESAURUS

trailer

3-D, Cinemascope, Cinerama, Technicolor, Western, afterpart, afterpiece, animated cartoon, black-and-white film, camp trailer, camper, caravan, cartoon, chiller, cinema, color film, creepie, documentary, documentary film, educational film, feature, film, flick, flicker, horror picture, horse opera, house trailer, mobile home, motion picture, motion-picture show, movie, moving picture, newsreel, nudie, photodrama, photoplay, picture, picture show, pornographic film, preview, queue, semitrailer, short, silent, silent film, skin flick, sneak preview, spaghetti Western, tab, tag, tail, tailpiece, talkie, talking picture, thriller, trail, trail car, trailer camp, trailer court, trailer park, train, truck trailer, underground film, wake