Here are some examples of words that use the root word vas:
* Vase: A vessel used for holding flowers.
* Vascular: Relating to the blood vessels.
* Vasoconstriction: The narrowing of blood vessels.
* Vasodilator: A substance that widens blood vessels.
It's important to note that the root word vas can also be found in medical terminology, often referring to blood vessels or the circulatory system.