1. General: (1) Costing nothing in terms of money, such as a free service. (2) Having legal and political rights that confer civil and political liberties, such as a free citizen. (3) Independent, not subject to the commands, constraints, or domination of another, such as a free country.
2. Purchasing: Pricing inclusive of delivery charges up to a named point, such as in 'free on board.'
3. Economics: Characterized by choice and not by constraint or external control, such as a free market.