CPIFreq.FrequencyTop 50,000Meanings1nounconsumer price index; CPIEconomic indicator measuring the average change in prices paid by consumers for goods and services; often used in news and policy discussions.See also: 消費者物価指数先せん月げつのCPIは前ぜん年ねん同どう月げつ比ひで2%上じょう昇しょうした。Last month's CPI rose 2% compared to the same month last year.