For questions that relate to inflation, which is the general increase in the prices of goods and services over a period of time.
Inflation is a rise in the general level of prices of goods and services in an economy over a period of time. When the general price level rises, each unit of currency buys fewer goods and services. Consequently, inflation also reflects an erosion in the purchasing power of money – a loss of real value in the internal medium of exchange and unit of account in the economy.
Inflation - From Wikipedia