[ trey-ler ] show ipa. See synonyms for trailer on Thesaurus. noun. a large van or wagon🤑 drawn by an automobile, truck, or tractor, used especially in hauling freight by road.: Compare full trailer, semitrailer. Also called🤑 travel trailer.

The short films came to be known as trailers because the projectionists originally tended to add them to the end🤑 of the reels of the B-movie in a show. Thus they trailed after the supporting movie but came before the🤑 main feature.