This is the 2356th most frequent Spanish word.
trabajadora
Hardworking (feminine).
In this sentence, 'trabajadora' is used as an adjective describing a female individual who has a strong work ethic.
Ella es muy trabajadora.
She is very hardworking.
In this usage, 'trabajadora' is a noun referring specifically to a female worker.
La trabajadora arregló el problema rápidamente.
The worker fixed the problem quickly.
Here, 'trabajadoras' functions as a plural adjective describing female employees characterized by their diligent work.