/ Dictionary / Index U upsy-daisy: Meaning and Definition of Find definitions for: up•sy-dai•sy Pronunciation: (up'sē-dā'zē), [key] — interj. (used, as for reassurance, at the moment of lifting a baby up.) Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. upswing uptake Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language