/ Dictionary / Index S stop knob: Meaning and Definition of Find definitions for: stop' knob" Pronunciation: [key] stop (def. 36d). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stoping stoplight 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