/ Dictionary / Index V vaticinate: Meaning and Definition of Find definitions for: va•tic•i•nate Pronunciation: (vu-tis'u-nāt"), [key] — -nat•ed, -nat•ing. to prophesy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vaticinate (Thesaurus) vaticinal vaticination Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language