壁塞 Traditional form: 壁塞 Pinyin (reading): bìsāi Definitions: wall plug screw anchor Characters: 壁 - partition, wall; rampart 塞 - to stop up, to seal, to cork, to block; pass, frontier; fortress Traditional characters: 壁 - partition, wall; rampart 塞 - to stop up, to seal, to cork, to block; pass, frontier; fortress