This is the 9287th most frequent Spanish word.
acumulan
"They accumulate."
Here, 'acumulan' is used to indicate the action of gathering or amassing wealth over time.
Ellos acumulan riqueza con los años.
They accumulate wealth over the years.
In this sentence, 'acumulan' depicts the process of objects gathering without deliberate effort.
En las esquinas de la habitación siempre se acumulan objetos olvidados.
Forgotten objects always accumulate in the corners of the room.
Here, 'se acumulan' is employed in reflexive form to show the clustering of clouds as a natural phenomenon.