/ Dictionary / Index W working hour: Meaning and Definition of Find definitions for: work'ing hour" Pronunciation: [key] work-hour. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. working girl working hypothesis Related Content Daily Word Quiz: benevolent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language