noun, noun or participle which takes 'suru', intransitive verb
seiza; formal kneeling sitting
The traditional Japanese formal sitting posture: kneeling with the tops of the feet flat on the floor and sitting back on the heels. Used in martial arts, tea ceremony, and formal occasions.
茶道の稽古では、正座をして先生の話を聞きます。
During tea ceremony practice, we sit in seiza and listen to the teacher.
長時間正座をしていると、足がしびれてしまいます。
If you sit in seiza for a long time, your legs will go numb.