/ Dictionary / Index I in hoc signo vinces*: Meaning and Definition of Find definitions for: in hoc sig•no vin•ces Pronunciation: (in hōk' sig'nō wing'kās Eng. in hok' sig'nō vin'sēz), [key] — Latin. Latin. in this sign shalt thou conquer: motto used by Constantine the Great, from his vision, before battle, of a cross bearing these words. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. inhibitor inholding Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language