rebate /ˈɹiːbeɪt/noun 7verb 6forms 3 noun7 •A deduction from an amount that is paid; an abatement. •The return of part of an amount already paid. •A rectangular groove made to hold two pieces (of wood etc) together; a rabbet.For your existing windows, the glazing rebates will also have to be deepened to provide the extra gap. — 2014 •The edge of a roll of film, from which no image can be developed. •An iron tool sharpened something like a chisel, and used for dressing and polishing wood. •A piece of wood hafted into a long stick, and serving to beat out mortar. •A kind of hard freestone used in making pavements. verb6 •To deduct or return an amount from a bill or payment •To cut a rebate (or rabbet) in something •To diminish or lessen something •To abate; to withdraw.he began a little to rebate from certain points of popery — 1563 •To beat to obtuseness; to deprive of keenness; to blunt; to turn back the point of, as a lance used for exercise.But doth rebate and blunt his natural edge. — 1603 •Of a falcon: to return to the hand after bating; see bate². formsrebated · rebating · rebates