/ Dictionary / Index P PK: Meaning and Definition of Find definitions for: PK Pronunciation: [key] personal knowledge psychokinesis. pk Pronunciation: [key] peck; pecks. pk. Pronunciation: [key] — pl. pks. pack. park. peak. peck. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. p.j.'s pkg. Related Content Daily Word Quiz: garrulous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language