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English definition of “trailer”

trailer

noun [C] (ADVERTISEMENT)    /ˈtreɪ.lər/ US  /-lɚ/
an advertisement for a film or a television or radio programme, consisting of short parts taken from it: I saw a trailer for the latest Spielberg film.Advertising, marketing and merchandisingRetailingProgrammes and other broadcasts
(Definition of trailer noun (ADVERTISEMENT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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