/ Dictionary / Index R rolling stock: Meaning and Definition of Find definitions for: roll'ing stock' Pronunciation: [key] the wheeled vehicles of a railroad, including locomotives, freight cars, and passenger cars. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rolling pin Rollins Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language