tumbling vs tumble

tumbling and tumble both are nouns.

Word	Noun	Adjective	Verb	Adverb
tumbling	Yes	No	No	No
tumble	Yes	No	Yes	No

tumbling (noun)	tumble (noun)
the gymnastic moves of an acrobat	an acrobatic feat of rolling or turning end over end
	a sudden drop from an upright position

tumbling (verb)	tumble (verb)
	do gymnastics, roll and turn skillfully
	fall suddenly and sharply
	suffer a sudden downfall, overthrow, or defeat
	put clothes in a tumbling barrel, where they are whirled about in hot air, usually with the purpose of drying
	understand, usually after some initial difficulty
	throw together in a confused mass
	fall down, as if collapsing
	fall apart
	roll over and over, back and forth
	cause to topple or tumble by pushing
	fly around