Something that is (1) recognized to have a value, (2) is finite, and (3) is transferable, that can be used in order to realize some desired effect (e.g., be exchanged for goods or services).
Something that is (1) recognized to have a value, (2) is finite, and (3) is transferable, that can be used in order to realize some desired effect (e.g., be exchanged for goods or services).