Meanings
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1
noun
A short preview of a film or TV show.
The trailer made the movie look really exciting.
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2
noun
A container on wheels pulled behind a vehicle to carry things.
At the end of the day, we loaded the snowmobiles back onto the trailer.
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3
noun
A vehicle pulled behind a car and used as a home, especially on holiday.
We drove our trailer to Yellowstone Park.
Thesaurus
Etymology
From trail + -er. The film sense derives from the fact that previews were formerly shown after the main feature, rather than before as is usual today, that is trailing after the main feature.