n.
    - the exchange of a commodity for money; the process of selling something. 
▸
(sales)
 a quantity or amount sold.
 - 
(sales)
 the activity or profession of selling.
 - a period in which goods are disposed of at reduced prices.
 - a public or charitable event at which goods are sold. 
▸a public auction.
 
 
  Phrase
  
    - for 
(or on)
 sale
 offered for purchase.  - sale or return
 Brit. an arrangement by which a purchaser takes a quantity of goods with the right to return any surplus without payment. 
   
  Etymology
  OE sala, from ON sala, of Gmc origin.