This is the 539th most frequent Spanish word.
cada
"Cada" means "each" or "every" in English.
In this sentence, 'cada' is used as an adjective meaning 'each' to refer to individual members of a group.
Cada estudiante debe traer su propio cuaderno.
Each student must bring their own notebook.
Here, 'cada' is used to indicate a recurring time interval, meaning 'every'.
Visito a mis abuelos cada semana.
I visit my grandparents every week.
In this context, 'cada' is used with 'uno' to emphasize distribution, meaning 'each one'. It reinforces individualized selection within a group.