/ Dictionary / Index H Haynes: Meaning and Definition of Find definitions for: Haynes Pronunciation: (hānz), [key] 1857–1925, U.S. inventor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. haymow Hay-Pauncefote Treaty Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language