poster(a large notice or advertisement for sticking on a wall etc. • Have you seen the posters advertising the circus); placard(a notice printed on e.g. wood or cardboard and carried, hung etc., in a public place • The protesters were carrying placards denouncing the government's policy); broadside; broadsheet; billposter; caution board; bill; banner(bookworm); mural(Alex Lilo); poster board(iwona); picket sign(у протестующих) While some smiled and held their picket signs high, others were noticeably tense, heads down and eyes darting between the dozens of police that had been weaving in and out of the crowd since the demonstration began. / He held a sign reading "Free Expression" in one hand, and a smaller one with "Free Teresa" in the other. 4uzhoj)
banner(A large-format publication, typically with one dimension much larger than the other, that is printed with a symbol, logo, slogan or other message)