This is the 7554th most frequent Chinese word.
该区域
"该区域" means "this area" or "the designated area" in English.
It refers to a specific region that is being described.
该区域的空气质量非常好。
The air quality in this area is excellent.
It designates a specific location where certain rules apply.
请不要在该区域内吸烟。
Please do not smoke in this area.
Here, it identifies a specific geographical area targeted for development.