/ Dictionary / Index C coin machine: Meaning and Definition of Find definitions for: coin' machine" Pronunciation: [key] See(def. 2). a coin-operated machine, esp. one for dispensing soft drinks, cigarettes, candy, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coin lock coin of the realm Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language