Cashier/kæˈʃɪr/ Definition 1 of 2Pro Tip 1/3Retail Environment Used for someone handling transactions at stores, often standing at a register. The cashier asked if I found everything I needed. Pro Tip 2/3Payment Collection Refers to receiving money in exchange for goods or services. Please go to the cashier to complete your payment. Pro Tip 3/3Not Just Money Cashiers also handle returns, exchanges, and sometimes customer inquiries. After realizing the shirt was too small, I returned it to the cashier.