洞
ど
う
Meanings
1
sinus; cavity; antrum
Anatomical term for a hollow space or cavity in the body, such as the paranasal sinuses.
The paranasal sinuses are cavities around the nose.
Inflammation was observed in the maxillary sinus on the CT image.
2
neighborhood (North Korean administrative division)
Used specifically for an administrative neighborhood unit in North Korea, roughly equivalent to a dong in South Korea.
There are many neighborhoods (dong) in Pyongyang.
North Korea's administrative divisions are divided into provinces, cities, counties, neighborhoods, etc.