Common Words:
* Visible: Capable of being seen.
* Vision: The ability to see; a mental image or idea.
* Visual: Relating to sight.
* Visitor: A person who visits a place.
* Revisiting: Visiting again.
* Supervision: The act of watching over.
* Visibility: The state of being able to be seen.
Less Common Words:
* Envisage: To imagine or conceive of.
* Supervise: To watch over and direct.
* Preview: To see something in advance.
* Review: To examine or consider again.
* Vista: A wide view, especially from a high point.
Scientific/Medical Terms:
* Visual cortex: The part of the brain that processes visual information.
* Visually impaired: Having a reduced ability to see.
Note: The root "vis" is often combined with prefixes and suffixes to create new words.