This is the 8263rd most frequent Spanish word.
pestana
Eyelash.
Here, 'pestañas' refers to the hairs on the edge of the eyelids.
Agustina tiene unas pestañas muy largas.
Agustina has very long eyelashes.
In this case, 'pestaña' refers to tabs or sections typically found in digital interfaces or notebooks.
Haz clic en la pestaña para abrir esa sección.
Click on the tab to open that section.
Here, 'pestaña' is used to describe a small marker or fold used to mark a specific place, such as on a book's page.