noun
A written notice or poster put up in a public place, such as on a bulletin board or wall.
See also: 張り出し (はりだし)
掲示板に貼り出しを見つけた。
I found a notice on the bulletin board.
選挙の貼り出しが街中にあふれている。
Election posters are all over town.
張り紙 is a more general term for a posted paper or sign, while 貼り出し specifically refers to a notice or placard put up for public viewing.
Compound of 貼り (hari, 'pasting') + 出し (dashi, 'putting out'), from the verb 貼り出す (haridasu, 'to post a notice').