American English

Definition of poster noun from the Oxford Advanced American Dictionary

     

    poster

     noun
    noun
    NAmE//ˈpoʊstər//
     
     
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  1. 1 a large notice, often with a picture on it, that is put in a public place to advertise something election posters a poster campaign (= an attempt to educate people about something by using posters ) a wanted poster (= with a picture of a person that the police are looking for) They put up a poster advertising the concert.
  2. 2a large picture that is printed on paper and put on a wall as decoration posters of her favorite movie stars
  3. 3a person who posts a message on a message board (= a place on a Web site where people can read or write messages)
See the Oxford Advanced Learner's Dictionary entry: poster