rebate

Noun

• a rectangular groove made to hold two pieces together

• a refund of some fraction of the amount paid

Verb

• join with a rebate
  • rebate the pieces of timber and stone
    

• cut a rebate in (timber or stone)

• give a reduction in the price during a sale
  • The store is rebating refrigerators this week
    

Related words

• Synonyms: 
  rabbet , discount