What is the meaning of the word "wad"?

Definitions:

A bundle or roll of cash, often implying a large amount of money. NOUN
- He pulled out a wad of cash from his pocket, counting the bills before paying for the antique vase.
A lump or bundle of soft material, used for padding, stuffing, or wiping. NOUN
- The artist used a wad of cotton to dab paint onto the canvas, creating a textured effect.
Refers to a lump or chunk of something chewable, such as chewing tobacco. NOUN
- Chewing on a wad of gum, she pondered over the problem, trying to find a solution.
Refers to a small, often compact mass of soft material used for various purposes. NOUN
- To prevent the leak temporarily, he stuffed a wad of cloth into the hole in the pipe until he could get proper materials for repair.