/ Dictionary / Index H high-voltage: Meaning and Definition of Find definitions for: high-volt•age Pronunciation: (hī'vōl'tij), [key] — adj. operating on or powered by high voltage: a high-voltage generator. dynamic; powerful: a high-voltage theatrical entrepreneur. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: high-voltage (Thesaurus) high-up highwall Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language