一封[ippuu] sealed letter
開封[kaifuu] unsealed letter
完封[kanpuu] complete blockade (seal)
旧封[kyuuhou] former fief
厳封[genpuu] sealing hermetically

言論を封殺する[genronwofuusatsusuru] to suppress the freedom of speech
御封[gofu] talisman
再封鎖[saifuusa] reblocking
三封[sanpuu] forced out on third
全封地[zenhouchi] the whole fief

鉄柵[tessaku] iron railing or fence
柵状組織[sakujousoshiki] palisade layer

立入禁止柵[tachiirikinshisaku] no-entry barrier
柵封[sakuhou] documents of feudal appointment (in China)