This is the 6373rd most frequent Spanish word.
berta
"Berta" is a proper noun, typically used as a female given name in Spanish.
Proper noun as a name of a person.
He visto a Berta en el parque.
I saw Berta in the park.
Tool named metaphorically for its functionality similar to an industrial-grade tool.
Podemos usar la berta para hacer un agujero.
We can use the drill to make a hole.
Code name for a specific operation or event.