/ Dictionary / Index H high-end: Meaning and Definition of Find definitions for: high-end Pronunciation: (hī'end'), [key] — adj. Informal. being the most expensive and technically sophisticated: high-end stereo equipment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. high-density polyethylene High Energy Astrophysical Observatory Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language