Common words:
* Viscous: Having a thick, sticky consistency.
* Visibility: The state of being able to see.
* Visible: Able to be seen.
* Vision: The ability to see.
* Visitor: A person who visits a place.
* Visa: An endorsement on a passport permitting the holder to enter, leave, or stay in a country.
Less common words:
* Visage: The appearance of a person's face.
* Visceral: Relating to the internal organs of the body.
* Viscount: A nobleman ranking below an earl.
* Viscera: The internal organs of the body, especially the intestines.
* Viscousity: The state or quality of being viscous.
Words with prefixes:
* Supervise: To oversee and direct the work of others.
* Revise: To examine and make changes to something.
* Televise: To broadcast something by television.
Note: There are many more words that contain "vis" depending on the context and meaning you are looking for. These are just some examples.