| Poster 1. (n.) A large bill or placard intended to be posted in public places. 2. (n.) One who posts bills; a billposter. 3. (n.) One who posts, or travels expeditiously; a courier. 4. (n.) A post horse. Thesaurus Entries advertisement, affiche, announcement, banner, bill, billboard, broadside, carrier, carrier pigeon, circular, flier, handbill, homer, homing pigeon, mail car, mail coach, mail packet, mail train, mail truck, mailer, mailplane, notice, packet boat, pigeon post, placard, post boat, post car, post coach, post-horse, post-office car, railway mail car, sign, signboard |