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.
economic. 1  pertaining to the production, distribution, and use of income, wealth, and commodities. 2  of or relating to the science of economics. 3  pertaining to an economy, or system of organization or operation, especially of the process of production.