valley. (building construction). An inside angle formed where two sloping sides intersect. (geography). A generally broad area of flat, low-lying land bordered by higher ground.
In ordinary usage, price is the quantity of payment or compensation given by one party to another in return for goods or services.
US Economy. Definition: The Consumer Price Index (CPI) is a monthly measurement of U.S. prices for most household goods and services. The Bureau of Labor Statistics (BLS) surveys the prices of 80,000 consumer items to create the index. It represents the prices of a cross-section of goods and services commonly bought by primarily urban households.