/ Dictionary / Index H hex: Meaning and Definition of Find definitions for: hex Pronunciation: (heks), [key] — v.t. to bewitch; practice witchcraft on: He was accused of hexing his neighbors' cows because they suddenly stopped giving milk. —n. spell; charm: With all this rain, somebody must have put a hex on our picnic. a witch. hex Pronunciation: (heks), [key] — adj. Informal. hexagonal: a bolt with a matching washer and hex nut. hexadecimal (def. 1). hex. Pronunciation: [key] hexagon hexagonal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hex (Thesaurus) hewn hexa- Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language