/ Dictionary / Index T tumbling: Meaning and Definition of Find definitions for: tum•bling Pronunciation: (tum'bling), [key] — n. the act, practice, or art of performing acrobatic tumbles, usually on a mat or the ground. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tumbling (Thesaurus) tumbleweed tumbling barrel Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language