/ Dictionary / Index P pole plate: Meaning and Definition of Find definitions for: pole' plate" Pronunciation: [key] — Carpentry. Carpentry. (in a trussed roof&hasp;) a plate resting upon the beams and supporting common rafters near their lower ends. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pole piece pole position Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language