exterior posting; something posted outside
Refers to notices, signs, or advertisements affixed to the outside of a building or structure. Can also denote the posted item itself.
The new menu is posted on the exterior of the shop.
The poster posted outside got torn by the rain.
outer fortifications
Historical military term for defensive works built outside the main encampment. Rare in modern usage.
The outer fortifications of the castle were built to prevent enemy intrusion.
Standard spelling with okurigana.
Irregular okurigana usage; less common but attested.
Compound of 外 (そと, 'outside') and 張り (はり, 'stretching' or 'pasting'), from the verb 張る (はる). The meaning 'outer fortifications' is a specialized historical extension.