Recibo vs. receta
In Spanish, the words recibo and receta can be confusing as they sound somewhat similar, but they refer to completely different concepts. Recibo is related to financial transactions and acknowledgements, while receta is used for instructions, either for cooking or for medical purposes.
Recibo
A2A recibo is a receipt, a bill, or a proof of payment. It's a document that acknowledges something has been received, such as money, a service, or goods. It can also be the first-person conjugation of the verb recibir (to receive).
Por favor, guarda el recibo de la compra por si necesitas hacer una devolución.
(Please, keep the purchase receipt in case you need to make a return.)
Este mes, el recibo de la luz llegó más alto de lo normal.
(This month, the electricity bill came in higher than usual.)
El repartidor me entregó el paquete y me pidió que firmara el recibo.
(The delivery person handed me the package and asked me to sign the receipt.)
No me dieron un recibo oficial, solo una nota escrita a mano.
(They didn't give me an official receipt, just a handwritten note.)
Yo siempre recibo a mis invitados con una bebida fría.
(I always receive my guests with a cold drink.)
Recibo muchos correos electrónicos de trabajo durante el día.
(I receive a lot of work emails during the day.)
Receta
A2A receta is primarily a recipe (a set of instructions for cooking) or a medical prescription (an order for medicine from a doctor).
Voy a preparar la paella siguiendo la receta de mi abuela.
(I am going to prepare the paella following my grandmother's recipe.)
¿Me puedes pasar la receta de ese pastel de chocolate? Estaba delicioso.
(Can you give me the recipe for that chocolate cake? It was delicious.)
Busqué en internet una receta fácil para hacer pan casero.
(I looked online for an easy recipe to make homemade bread.)
El doctor me dio una receta para un antibiótico.
(The doctor gave me a prescription for an antibiotic.)
Para comprar este medicamento en la farmacia, necesitas presentar una receta.
(To buy this medication at the pharmacy, you need to present a prescription.)
Perdí la receta del médico y tuve que volver a la consulta.
(I lost the doctor's prescription and had to go back to the office.)
Summary
In summary, never confuse these two words. Use recibo when talking about a financial receipt or a bill. Use receta when you are referring to a cooking recipe or a doctor's prescription. They are not interchangeable in any context.