balloon
🇺🇸
/bəˈluːn/
🇬🇧
/bəˈluːn/
A colorful rubber bag that gets bigger when filled with air, used as a toy or decoration.
The child's balloon floated away when she let go of the string.
A large bag filled with hot air or gas that can carry people up in the air in a basket.
We watched the hot air balloon rise slowly into the sky.
To swell or puff out into a round shape.
Her dress ballooned in the strong wind as she walked.
To grow quickly in size or amount.
The company's debt ballooned after the failed project.
To ride in a hot-air balloon for fun.
They ballooned over the countryside on a sunny morning.