/ Dictionary / Index V vade mecum: Meaning and Definition of Find definitions for: va•de me•cum Pronunciation: (vā'dē mē'kum, vä'-), [key] — pl. va•de me•cums. something a person carries about for frequent or regular use. a book for ready reference; manual; handbook. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. vacuum tube V. Adm. Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language