noun
receipt
rih-SEET/rɪˈsiːt/
The taking in of something delivered.
The handover marks her receipt of the parcel.

Etymology
The “take” root developed into receiving, though the prefix’s exact force here is obscure. From “thing or money received” and “act of receiving,” receipt came to name the written acknowledgment of that transaction.
In context
an invoice is sent before you pay to request payment a receipt is what you get after you've paid as proof of payment
More examples
- Payment is due upon receipt of the invoice.
- Please acknowledge receipt of these documents.
- The office records the date of receipt for every application.
Forms
receipt
receive verb — To take in something given or delivered.
Similar words
- reception
- Also means receiving, but often concerns guests, signals, or responses.
- acceptance
- Implies willingness to take something, not merely its arrival.