General Activity:
* गतिविधि (Gatividhi) - This is the most common and general term for activity.
* कार्य (Kary) - This means "work" or "task" but can also be used to describe activity in general.
* क्रिया (Kriya) - This word means "action" or "act" and can also be used for activity.
Specific Types of Activities:
* खेल (Khel) - For "game" or "sport"
* कसरत (Kasrat) - For "exercise"
* शौक (Shauk) - For "hobby"
* काम (Kaam) - For "work" or "job"
The best translation will depend on the specific context of your sentence.