The Japanese verbal noun '正座 (せいざ)' refers to the traditional Japanese way of sitting on the floor with one's legs folded underneath, knees bent, and feet tucked under the buttocks. This posture is commonly used in formal settings, such as during tea ceremonies, martial arts, or when sitting on tatami mats. It is considered a sign of respect and proper etiquette. For example: Please kneel properly「正座をしてください」(せいざをしてください). She sat in the formal kneeling position「彼女は正座をした」(かのじょはせいざをした). Note that '正座' is often used as a noun but can also function as a verbal noun (suru-verb) when combined with 'する' to indicate the action of kneeling in this manner.