What does DRAFT mean?

noun

1. a document ordering the payment of money; drawn by one person or bank on another
2. a current of air (usually coming into a chimney or room or vehicle)
3. a preliminary sketch of a design or picture
4. a serving of drink (usually alcoholic) drawn from a keg“they served beer on draft”
5. any of the various versions in the development of a written work“a preliminary draft”
6. the depth of a vessel's keel below the surface (especially when loaded)
7. a regulator for controlling the flow of air in a fireplace
8. a dose of liquid medicine“he took a sleeping draft”