Definition
to close off a space in a wall by using bricks or stones
砌墙（将壁上的空间堵上）
Last year, the workers decided to wall up the old doorway to prevent anyone from entering.
去年，工人们决定用墙封住旧门道，以防止任何人进入。
The shop used to have a window, but they have walled it up with stones.
这家商店以前有个窗户，但他们已经用石头把它封起来了。
To secure the cellar, the homeowner chose to wall it up with bricks.
为了确保地窖的安全，房主选择用砖块将其封起来。