This is the 333rd most frequent Chinese word.
人口
Population.
Here, '人口' refers to the total number of people living in the city.
这个城市的人口超过一百万。
The population of this city exceeds one million.
In this sentence, '人口' signifies a group of people living in rural areas.
农村的人口正在逐渐减少。
The rural population is gradually reducing.
'人口' is used to refer to the distribution of the human population in different areas.