► 動詞
封じる [ふうじる] meaning: seal rank: 2
☆ 彼等は建物の入口を封じた ⇨ They sealed off the entrance of the building
密閉 [みっぺい] [密閉する] meaning: seal rank: 3
☆ 容器は密閉されている ⇨ The container is completely sealed (☛ Sealed so that nothing penetrates)
厳封 [げんぷう] [厳封する] meaning: seal rank: 4
☆
封印 [ふういん] [封印する] meaning: seal rank: 4
☆ 手紙は封印されてた ⇨ The letter was sealed
密封 [みっぷう] [密封する] meaning: seal rank: 4
☆ シリンダーの中にはガスが密封されている ⇨ Gas is sealed inside the cylinder (☛ Typically about gas, under pressure)
► 名詞
封 [(1)ふう] meaning: seal rank: 3
☆ 手紙には封がされている ⇨ The letter is sealed
密閉 [みっぺい] meaning: seal rank: 3
☆ 密閉容器 ⇨ A completely sealed, airtight, container (☛ Usually implies airtightness or watertightness)