Definitions
1.AdjectiveGrowing rapidly as a balloon."The ballooning economy was out of control."
2.AdjectiveRising high in the air."The cricketer hit a ballooning shot for six runs."
3.NounThe act of something that swells or expands.
4.NounThe sport or hobby of flying in a hot-air balloon."When he retired, he took up ballooning."
5.NounThe mechanical kiting used by spiders, mites, caterpillars, etc. to travel through the air.
6.Verbpresent participle and gerund of balloon