A large square stone at the corner of a wall; also, the outside angle of a building.

【建】方形之隅石；屋宇之外角。

Any of several wedge-shaped devices, as for locking type in a chase, for raising a gun barrel, etc.

楔形支撑物；排版时稳定活字所用之楔子；楔形石块、木块等。