/ Dictionary / Index H high-speed: Meaning and Definition of Find definitions for: high-speed Pronunciation: (hī'spēd'), [key] — adj. designed to operate or operating at a high speed: a high-speed drill. suitable for minimum light exposure: high-speed film; a high-speed lens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: high-speed (Thesaurus) high-sounding high-speed steel Related Content Daily Word Quiz: abyss Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language