This is the 780th most frequent German word.
je
"Je" in German means "ever" or "each," depending on context.
Here, 'je nach' means 'according to' and is used to express dependency or accordance with something.
Du kannst wählen, je nach deinem Geschmack.
You can choose according to your taste.
In this context, 'je' introduces a comparative construction, often paired with 'desto' to compare two actions or states.
Je mehr wir üben, desto besser werden wir.
The more we practice, the better we become.
In this case, 'je' means 'ever' and is used to emphasize the action in a past context.