/ Dictionary / Index T terrify: Meaning and Definition of Find definitions for: ter•ri•fy Pronunciation: (ter'u-fī"), [key] — -fied, -fy•ing. to fill with terror or alarm; make greatly afraid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: terrify (Thesaurus) terrific terrigenous Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language