堵塞 Traditional form: 堵塞 Pinyin (reading): dǔsè Definitions: to clog up blockage Characters: 堵 - wall; to stop, to prevent, to block 塞 - to stop up, to seal, to cork, to block; pass, frontier; fortress Traditional characters: 堵 - wall; to stop, to prevent, to block 塞 - to stop up, to seal, to cork, to block; pass, frontier; fortress