Pronunciation spelling of tumbling.

A surname.

A machine, consisting of a drum that rotates on a horizontal axis, that grinds or pulverizes material mixed with a grinding material such as iron balls.

present participle of tumble

The act of something that tumbles.

present participle of rough-and-tumble

plural of tumbling

present participle of rough and tumble

present participle of tumble to

(gymnastics) A padded mat used in gymnastics.