tumbling
Pronunciation:
verb
Definitions
To fall end over end; to roll over and over.
To perform gymnastics such as somersaults, rolls, and handsprings.
To drop rapidly.
Example: Share prices tumbled after the revelation about the company's impending failure.
To smoothe and polish, e.g., gemstones or pebbles, by means of a rotating tumbler.
noun
Definitions
The act of something that tumbles.