/ Dictionary / Index V V block: Meaning and Definition of Find definitions for: V block Pronunciation: [key] a block having a precise-shaped groove for checking the roundness or concentricity of a machine part or the like, or for holding cylindrical pieces of work. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. vb. VC Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language