/ Dictionary / Index H high-test: Meaning and Definition of Find definitions for: high-test Pronunciation: (hī'test'), [key] — adj. (of gasoline) boiling at a relatively low temperature. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. high-tension high-ticket Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language