/ Dictionary / Index P plu: Meaning and Definition of Find definitions for: plu Pronunciation: (pl), [key] — n. plew. plu. Pronunciation: [key] plural. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. PLSS pluck Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language