n (context|real estate) A property sale negotiated with a mortgage company in which a lender takes less than the total amount due.
n (context|investments) A sale of a security that one does not own, delivery obligation met by borrowing the security from another owner.
n (context|economics) A sale of a financial security, commodity, or other good that one does not own with the contractual obligation to make delivery of the good to the buyer at a date in the future.