census
noun [ C ] uk/ˈsen.səs/ us/ˈsen.səs/
（官方的）调查，统计;（尤指）人口普查
a count for official purposes, especially one to count the number of people living in a country and to collect information about them
We have a census in this country every ten years. 我们在这个国家每10年进行一次人口普查。
She was stopped in her car for a traffic census. 她被拦下来接受交通情况调查。