/ Dictionary / Index K knob lock: Meaning and Definition of Find definitions for: knob' lock" Pronunciation: [key] a lock having a spring bolt moved by a knob or knobs, and a dead bolt moved by a key. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. knob latch knock Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language