"rebate" in the noun sense
1. rebate, discount
a refund of some fraction of the amount paid
2. rabbet, rebate
a rectangular groove made to hold two pieces together
"rebate" in the verb sense
give a reduction in the price during a sale
"The store is rebating refrigerators this week"
cut a rebate in (timber or stone)
join with a rebate
"rebate the pieces of timber and stone"
Source: WordNet® (An amazing lexical database of English)
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