Discount
A price on a bond below par, or 100, and the opposite of a premium.  A bond will trade at a discount dollar price if its coupon is lower than current interest rates on similar debt.  All things being equal, the lower the coupon of a bond, the lower the price, and therefore the greater the potential discount.  The extreme example of a bond trading at a discount is a zero-coupon bond.  Since zero-coupon bonds do not pay periodic interest payments, all of their return comes from the difference between the discounted purchase price and par, which is paid on the maturity date.