sale
noun
1.
a particular instance of selling
2.
the general activity of selling
3.
an occasion (usually brief) for buying at specially reduced prices
4.
the state of being purchasable; offered or exhibited for selling
5.
an agreement (or contract) in which property is transferred from the seller (vendor) to the buyer (vendee) for a fixed price in money (paid or agreed to be paid by the buyer)