/ Dictionary / Index T tailspin: Meaning and Definition of Find definitions for: tail•spin Pronunciation: (tāl'spin"), [key] — n., v., -spinned, -spin•ning. —n. —v.i. to take or experience a sudden and dramatic downturn: After the mill closes, the local economy may tailspin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tailspin (Thesaurus) tail skid tailstock Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language