/ Dictionary / Index P ply rolling: Meaning and Definition of Find definitions for: ply' roll"ing Pronunciation: [key] — Metalworking. Metalworking. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Plymouth Rock plywood Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language