poster

Noun

• a horse kept at an inn or post house for use by mail carriers or for rent to travelers

• someone who pastes up bills or placards on walls or billboards

• a sign posted in a public place as an advertisement
  • a poster advertised the coming attractions
    

Related words

• Synonyms: 
  post horse , post-horse , bill poster , bill sticker , posting , placard , notice , bill , card