/ Dictionary / Index H hgwy.: Meaning and Definition of Find definitions for: hgwy. Pronunciation: [key] highway. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hgt. H.H. Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language