Is the word chewing a noun?

No, "chewing" is typically a verb. It describes the action of using your teeth to break down food.

However, "chewing" can sometimes be used as a noun in certain contexts, like:

* The act of chewing: "The doctor examined the patient's chewing."

* A specific type of chewing: "The gum company claimed their product had superior chewing."

It's important to consider the context of the sentence to determine if "chewing" is being used as a noun or a verb.