consumer price index
noun [ C usually singular ] uk/kənˌsjuː.mə ˈpraɪs ˌɪn.deks/ us/kənˌsuː.mɚ ˈpraɪs ˌɪn.deks/ (abbreviation CPI)
零售物价指数
a measurement of the changes in the cost of basic goods and services
Compare: cost-of-living index