This is the 4663rd most frequent Spanish word.
cenizas
Ashes.
Here, 'cenizas' is used in its literal sense to refer to the material remains of something burned.
Las cenizas son el residuo que queda después de una combustión completa.
Ashes are the residue left after complete combustion.
In this sentence, 'cenizas' symbolizes the remnant or aftermath of a figurative or symbolic event.
De las cenizas de la derrota, surgió una nueva esperanza.
From the ashes of defeat, a new hope arose.
Here, 'cenizas' is used metaphorically to describe a grayish, dusty appearance similar to ashes.