/ Dictionary / Index P plench: Meaning and Definition of Find definitions for: plench Pronunciation: (plench), [key] — n. a tool combining pliers and wrench: used esp. by astronauts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plenary indulgence plenipotent Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language