Bank (financial institution) – el banco
(Pronounced ban-koh)
To remember that bank is pronounced ban-koh (banco) in Spanish, use the following mnemonic:
It was just his luck that the bank had decided to ban coins (banco) on the day he tried to pay in his savings.

Banco is masculine, so it's el banco. Imagine an elephant running a bank.

Examples of banco (bank) in a sentence
Voy al banco a sacar dinero.
(I am going to the bank to withdraw money.)
El banco cierra a las tres de la tarde.
(The bank closes at three in the afternoon.)
Mi banco está en el centro de la ciudad.
(My bank is in the city centre.)