/ Dictionary / Index M machine word: Meaning and Definition of Find definitions for: machine' word" Pronunciation: [key] word (def. 9). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. machine-wash machinist Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language