- Rising high in the air.
"The cricketer hit a ballooning shot for six runs."
- Growing rapidly as a balloon.
"The ballooning economy was out of control."
- The act of something that swells or expands.
- The mechanical kiting used by spiders, mites, caterpillars, etc. to travel through the air.
- The sport or hobby of flying in a balloon.
"When he retired, he took up ballooning."
- present participle of balloon