IPA: //ˈpeɪər//
KK: /ˈpeɪər/
A person or entity that is responsible for paying money, such as a bill or a debt.
The payer of the invoice must ensure that the payment is made on time.
Payer → It is formed from "pay" (from Old French *paier*, meaning to pay or satisfy) and "-er" (meaning a person who). A payer is a person who pays or satisfies a debt or obligation.
Think of someone who 'satisfies' a debt or obligation — that's what a payer does.