an estimation that is too low; an estimate that is less than the true or actual value

To sell or offer for sale at a reduced price, To underestimate the significance or effectiveness of; minimize, To lend, or make a practice of lending, money, abating the discount, verb_ To take into consideration beforehand; to anticipate and form conclusions concerning (an event), To leave out of account; to take no notice of, noun_ A deduction made for interest, in advancing money upon, or purchasing, a bill or note not due; payment in advance of interest upon money, The rate of interest charged in discounting