Supply

Stuff. As in: half of the Supply-Demand Show, now airing Tuesday nights on NBC.

In Micro Econ, i.e. focus on the firm, supply usually refers to the raw materials that go into production. You have supplies in inventory. They get tweaked and melted and assembled and eventually become part of the whosamawhut.

At a Macro Econ level, supply refers to the stuff available for sale to a broad array of people. The early adopters willing to pay lots. The marginal adopter willing to pay...meh. The curve meets with demand in this fashion, and sales are made.

See: Supply-Demand Curve.