This is the 5869th most frequent Spanish word.
tanque
Tank.
tank as a container for storing water
El tanque de agua tiene una capacidad de 500 litros.
The water tank has a capacity of 500 liters.
military vehicle often referred to as a 'tank'
El tanque del ejército avanza por el campo.
The army tank advances through the field.
reservoir or container for fuel in a vehicle