What does cada semanas mean?

"Cada semanas" is not a correct Spanish phrase. It's a literal translation of "every weeks", but it's grammatically incorrect.

Here's the correct way to say "every week" in Spanish:

* Cada semana: This is the most common and natural way to express "every week".

* Semanalmente: This is a more formal way to say "weekly".

Examples:

* Voy al gimnasio cada semana. (I go to the gym every week.)

* La revista se publica semanalmente. (The magazine is published weekly.)