Here's a breakdown:
* Parler: To speak
* Français: French (adjective and noun)
Therefore, "parler français" literally translates to "speak French."
Here are some other ways to say it:
* Savoir parler français: To know how to speak French (more formal)
* Être capable de parler français: To be able to speak French
* Avoir le français: To have French (meaning you know the language)
The choice of expression depends on the context and desired level of formality.