"Activa" is a term that might refer to the adult film studio, Bluebird Films, also known as "Activision." This studio is well-known for producing various pornographic content with diverse genres and categories. If you are looking for videos from this particular studio, then "activia" or "activation" would be an appropriate tag to search for. However, without the context of the original language, it's difficult to provide a precise meaning of the term "activa."