noun
receipt, proof of payment
B1
Quittung (die) means 'receipt' or 'proof of payment'. Common in commerce to document a paid transaction. Plural Quittungen is regular (-en). Feminine noun; genitive often der Quittung, dative den Quittungen. No irregular plural. Used when paying or asking for proof of purchase.
Examples
Bitte behalten Sie die Quittung für die Rückgabe des Artikels.
Please keep the receipt if you want to return the item.
Die Quittung dient als Nachweis der Zahlung.
The receipt serves as proof of payment.
Bitte bewahren Sie die Quittung als Kaufnachweis auf.
Please keep the receipt as proof of purchase.
Details
Mnemonics
Imagine a small slip of paper with 'PAID' stamped on it — that's the Quittung
Sounds a bit like 'quit' + 'tung' — think 'quit' paying and get a 'Quittung' (receipt)
die Quittung — imagine a cashier handing 'her' the receipt (die) to remember feminine gender
Notes
Quittung is the standard word for a purchase receipt. For invoices use 'Rechnung'.