numb

Which Means:

Not having any feeling in a part of your body, or not feeling any emotion.

Sometimes when you go to the dentist, they will make your mouth numb so you won't feel pain.

This word has a silent B on the end.

A person who installs and repairs the water pipes in buildings.

We must have the plumber over to the house tonight because our sink leaks.

This word has a silent B in the middle.