/ Dictionary / Index P peaky: Meaning and Definition of Find definitions for: peak•y Pronunciation: (pē'kē), [key] — peak•i•er, peak•i•est. peaked. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: peaky (Thesaurus) peak time peal Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language