/ Dictionary / Index D downslide: Meaning and Definition of Find definitions for: down•slide Pronunciation: (doun'slīd"), [key] — n. a decline or downward trend, as of prices. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. downsize downspin Related Content Daily Word Quiz: topography Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language