How to write 堵

堵 [dǔ] 1. To block or obstruct; to stop up. 阻塞（sāi ㄙㄞ），挡。 Examples: 堵塞 (to block); 堵挡 (to obstruct); 堵截 (to intercept); 堵击 (to defend against); 堵嘴 (to stop someone's mouth). 2. To feel unwell or mentally blocked. 心中不畅快。 Example: 堵心 (to feel depressed or restricted in emotions). 3. Wall. 墙。 Example: 围者如堵 (surrounded like a wall). 4. A measure word for walls. 量词，用于墙。 Example: 一堵墙 (a wall). 5. In ancient times, a unit of measurement for walls made up of sixteen boards, referred to as “one堵.” 古代钟或磐十六枚编成一组，挂在一个架子上称“一堵”。 6. Surname. 姓。 [Additional meanings] 1. Same as the original meaning (wall). 同本义 ([En.] wall) 2. An ancient unit of the area of walls; built using boards, with five boards forming a wall; the length of the board equals the length of the wall, and five layers of boards determine the height of the wall. 古代墙壁的面积单位，古代用板筑法筑土墙，五板为一堵，板的长度就是堵的长度，五层板的高度就是堵的高度 ([En.] measurement of a wall in ancient times). [Related Quotes] 1. 《说文》：堵，垣也。五版为一堵。 2. 《淮南子·原道》：环堵之室。 3. 《尉缭子·战威》：止如堵墙。 Examples: 堵墙 (a wall or earth wall, often used metaphorically for a dense crowd); 堵垣 (a wall). [Verbs] To block or obstruct. 堵塞 (【英】：stop up; block up). Examples: 堵当 (to resist or block); 堵御 (to obstruct or defend); 堵嘴 (to stop someone from speaking out against something); 堵搡 (dialect. To block someone with words, leaving them speechless); 把窟窿堵上 (to block a hole); 把老鼠洞堵死 (to seal a mouse hole). [Measure] Mostly used for walls and other objects. 多用于墙，也用于其他物体。 Examples: 一堵烟尘 (a dust wall); 一堵墙 (a wall).