[proof-uh
v-pur-chuhs] 
| a sales slip, label, box top, or other item associated with a product that is presentable as evidence of actual purchase, as for claiming a refund or rebate. |
| Main Entry: | proof-of-purchase |
| Part of Speech: | adj |
| Definition: | pertaining to a symbol or label on a product that can be removed by the buyer to prove purchase of a product in order to receive a rebate or refund |