/ Dictionary / Index H hepcat: Meaning and Definition of Find definitions for: hep•cat Pronunciation: (hep'kat"), [key] — n. Older Slang. a performer or admirer of jazz, esp. swing. a person who is hep; hipster. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Hepburn system Hephaestus Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language