/ Dictionary / Index G guy Friday: Meaning and Definition of Find definitions for: guy' Fri'day Pronunciation: [key] a man who acts as a general assistant in a business office or to an executive and has a wide variety of esp. secretarial and clerical duties. Cf. gal Friday. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Guy Fawkes Day Guyon Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language