WordNet (r) 3.0 (2006):

price cut
    n 1: cutting the price of merchandise to one lower than the
         usual or advertised price [syn: price cutting, price
         cut]

Moby Thesaurus II by Grady Ward, 1.0:

50 Moby Thesaurus words for "price cut":
   abatement, agio, allowance, bank discount, break, breakage,
   cash discount, chain discount, charge-off, cheapening, concession,
   cut, decline, deduction, deflation, depreciation, devaluation,
   discount, dive, drawback, kickback, lowering, markdown, nose dive,
   penalty, penalty clause, percentage, plummet, plummeting, plunge,
   premium, price cut, price fall, price reduction, rebate,
   rebatement, reduction, refund, rollback, sag, salvage, setoff,
   slash, slump, tare, time discount, trade discount, tret,
   underselling, write-off