1. A sign posted in a public place as an advertisement
   "a poster advertised the coming attractions"
   - posting, placard, notice, bill, card 
2. Someone who pastes up bills or placards on walls or billboards
   - bill poster, bill sticker 
3. Someone who sends a message to an an internet discussion forum, blog, newsgroup, mailing list, etc. 
4. [archaic] A horse kept at an inn or post house for use by mail carriers or for rent to travellers
   - post horse, post-horse

Derived forms: posters

See also: post

Type of: Equus caballus, horse, sign, worker

Encyclopedia: Poster

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