Definitions

1. noun

a flexible bag or envelope made of lightweight material, filled with a gas, such as helium, to provide lift and buoyancy

“The child held a bright red balloon at the party.”

2. verb

to inflate (something, such as a balloon) with gas, especially helium

“The party entertainer learned how to balloon the balloons with helium.”

3. verb

to decorate or fill something with balloons or balloon-like objects

“The artist ballooned the room with colorful balloons to create a festive atmosphere.”