1.
The ~ is the place in a shop where a product is passed from the seller to the customer. The abbreviation POS is also used. (BUSINESS)
N-COUNT
2.
Point of sale is used to describe things which occur or are located or used at the place where you buy something. The abbreviation POS is also used. (BUSINESS)
...point-of-sale advertising.
N-UNCOUNT: usu N n