Definitions

1. noun

A flexible bag or container made of rubber or synthetic materials, filled with air or gas and used for decoration, entertainment, or to lift objects

“The child held a balloon and watched as it floated up to the ceiling.”

2. verb

To inflate or fill with air or gas, typically by blowing

“She blew up the balloon and tied it off with a knot.”

3. verb

To become inflated or swollen, especially with air or gas

“The balloon began to balloon as it filled with hot air.”

4. noun

A sudden increase in size or amount

“The company’s profits began to balloon after they introduced a new product.”