advance payment, down payment, preview, advance, lead
El registro es válido solo después de pago de adelanto.
Registration is valid only after advance payment.
Les di un montón de plata como adelanto a esas perras y desaparecieron.
I gave those bitches a ton of money as an advance and they disappeared.
— The Chaser (2008)
Muchas gracias en adelanto por tu cooperación.
Thank you very much in advance for your cooperation.