/ Dictionary / Index L labor spy: Meaning and Definition of Find definitions for: la'bor spy" Pronunciation: [key] an employee who is used by management to spy on union activities. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. labors of Hercules labor union Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language