down payment vs rebate

down payment

noun
  • A payment representing a fraction of the price of something being purchased, made to secure the right to continue making payments towards that purchase. 

  • Any initial commitment signifying an intention to carry out a larger future commitment, even though no legal rights or obligations are secured. 

rebate

noun
  • The return of part of an amount already paid. 

  • An iron tool sharpened something like a chisel, and used for dressing and polishing wood. 

  • A kind of hard freestone used in making pavements. 

  • The edge of a roll of film, from which no image can be developed. 

  • A deduction from an amount that is paid; an abatement. 

  • A piece of wood hafted into a long stick, and serving to beat out mortar. 

  • A rectangular groove made to hold two pieces (of wood etc) together; a rabbet. 

verb
  • To deduct or return an amount from a bill or payment 

  • To beat to obtuseness; to deprive of keenness; to blunt; to turn back the point of, as a lance used for exercise. 

  • To cut a rebate (or rabbet) in something 

  • To abate; to withdraw. 

  • Of a falcon: to return to the hand after bating; see bate². 

  • To diminish or lessen something 

How often have the words down payment and rebate occurred in a corpus of books? (source: Google Ngram Viewer )