1. Sell securities, commodities or foreign currency that is not actually owned by the seller, who hopes to cover (buy back) the sold items at a lower price and thus to earn a profit
   "The trader sold short on the declining stock"
    
2. Underestimate the real value or ability of
   "Don't sell short the new employee's potential"

Derived forms: sells short, sold short, selling short

Type of: flog [Brit, informal], sell, underestimate, underrate

Encyclopedia: Sell short